Common Weakness Enumeration
CWE-362
Allowed-with-ReviewConcurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Abstraction: Class · Status: Draft
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.
802 vulnerabilities reference this CWE, most recent first.
CVE-2026-83722 (GCVE-0-2026-83722)
Vulnerability from cvelistv5 – Published: 2026-10-13 18:59 – Updated: 2026-10-31 18:03
VLAI
EPSS
VEX
Title
Microsoft Local Security Authority (LSA) Server Elevation of Privilege Vulnerability
Summary
Use after free in Microsoft Local Security Authority Server (lsasrv) allows an authorized attacker to elevate privileges locally.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 20:33 UTC
CWE
Assigner
microsoft
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
21 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Windows 10 Version 1607 |
Affected:
10.0.14393.0 , < 10.0.14393.9612
(custom)
|
|
| Microsoft | Windows 10 Version 1809 |
Affected:
10.0.17763.0 , < 10.0.17763.9376
(custom)
|
|
| Microsoft | Windows 10 Version 21H2 |
Affected:
10.0.19044.0 , < 10.0.19044.7807
(custom)
|
|
| Microsoft | Windows 10 Version 22H2 |
Affected:
10.0.19045.0 , < 10.0.19045.7807
(custom)
|
|
| Microsoft | Windows 11 version 23H2 |
Affected:
10.0.22631.0 , < 10.0.22631.7652
(custom)
|
|
| Microsoft | Windows 11 Version 23H2 |
Affected:
10.0.22631.0 , < 10.0.22631.7652
(custom)
|
|
| Microsoft | Windows 11 Version 24H2 |
Affected:
10.0.26100.0 , < 10.0.26100.9711
(custom)
|
|
| Microsoft | Windows 11 Version 25H2 |
Affected:
10.0.26200.0 , < 10.0.26200.9711
(custom)
|
|
| Microsoft | Windows 11 version 26H1 |
Affected:
10.0.28000.0 , < 10.0.28000.3231
(custom)
|
|
| Microsoft | Windows 11 Version 26H2 |
Affected:
10.0.26300.0 , < 10.0.26300.9711
(custom)
|
|
| Microsoft | Windows Server 2012 |
Affected:
6.2.9200.0 , < 6.2.9200.26434
(custom)
|
|
| Microsoft | Windows Server 2012 (Server Core installation) |
Affected:
6.2.9200.0 , < 6.2.9200.26434
(custom)
|
|
| Microsoft | Windows Server 2012 R2 |
Affected:
6.3.9600.0 , < 6.3.9600.23470
(custom)
|
|
| Microsoft | Windows Server 2012 R2 (Server Core installation) |
Affected:
6.3.9600.0 , < 6.3.9600.23470
(custom)
|
|
| Microsoft | Windows Server 2016 |
Affected:
10.0.14393.0 , < 10.0.14393.9612
(custom)
|
|
| Microsoft | Windows Server 2016 (Server Core installation) |
Affected:
10.0.14393.0 , < 10.0.14393.9612
(custom)
|
|
| Microsoft | Windows Server 2019 |
Affected:
10.0.17763.0 , < 10.0.17763.9376
(custom)
|
|
| Microsoft | Windows Server 2019 (Server Core installation) |
Affected:
10.0.17763.0 , < 10.0.17763.9376
(custom)
|
|
| Microsoft | Windows Server 2022 |
Affected:
10.0.20348.0 , < 10.0.20348.5761
(custom)
|
|
| Microsoft | Windows Server 2025 |
Affected:
10.0.26100.0 , < 10.0.26100.33650
(custom)
|
|
| Microsoft | Windows Server 2025 (Server Core installation) |
Affected:
10.0.26100.0 , < 10.0.26100.33650
(custom)
|
Date Public
2026-10-13 14:00
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"product": "Windows 11 Version 24H2",
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"version": "10.0.26100.0",
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},
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"product": "Windows 11 Version 25H2",
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"status": "affected",
"version": "10.0.26300.0",
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]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows Server 2012",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "6.2.9200.26434",
"status": "affected",
"version": "6.2.9200.0",
"versionType": "custom"
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]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows Server 2012 (Server Core installation)",
"vendor": "Microsoft",
"versions": [
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},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows Server 2012 R2",
"vendor": "Microsoft",
"versions": [
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"status": "affected",
"version": "6.3.9600.0",
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},
{
"platforms": [
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"product": "Windows Server 2012 R2 (Server Core installation)",
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{
"platforms": [
"x64-based Systems"
],
"product": "Windows Server 2016",
"vendor": "Microsoft",
"versions": [
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"lessThan": "10.0.14393.9612",
"status": "affected",
"version": "10.0.14393.0",
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"product": "Windows Server 2016 (Server Core installation)",
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{
"platforms": [
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],
"product": "Windows Server 2019",
"vendor": "Microsoft",
"versions": [
{
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"status": "affected",
"version": "10.0.17763.0",
"versionType": "custom"
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{
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"product": "Windows Server 2019 (Server Core installation)",
"vendor": "Microsoft",
"versions": [
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"status": "affected",
"version": "10.0.17763.0",
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},
{
"platforms": [
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],
"product": "Windows Server 2022",
"vendor": "Microsoft",
"versions": [
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"status": "affected",
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"vendor": "Microsoft",
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"version": "10.0.26100.0",
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},
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],
"product": "Windows Server 2025 (Server Core installation)",
"vendor": "Microsoft",
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"status": "affected",
"version": "10.0.26100.0",
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CVE-2026-83666 (GCVE-0-2026-83666)
Vulnerability from cvelistv5 – Published: 2026-10-13 18:59 – Updated: 2026-10-31 18:02
VLAI
EPSS
VEX
Title
Active Directory Certificate Services (AD CS) Elevation of Privilege Vulnerability
Summary
Concurrent execution using shared resource with improper synchronization ('race condition') in Active Directory Certificate Services (AD CS) allows an authorized attacker to elevate privileges locally.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 00:00 UTC
CWE
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
microsoft
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
13 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Windows 10 Version 1607 |
Affected:
10.0.14393.0 , < 10.0.14393.9612
(custom)
|
|
| Microsoft | Windows 10 Version 1809 |
Affected:
10.0.17763.0 , < 10.0.17763.9376
(custom)
|
|
| Microsoft | Windows Server 2012 |
Affected:
6.2.9200.0 , < 6.2.9200.26434
(custom)
|
|
| Microsoft | Windows Server 2012 (Server Core installation) |
Affected:
6.2.9200.0 , < 6.2.9200.26434
(custom)
|
|
| Microsoft | Windows Server 2012 R2 |
Affected:
6.3.9600.0 , < 6.3.9600.23470
(custom)
|
|
| Microsoft | Windows Server 2012 R2 (Server Core installation) |
Affected:
6.3.9600.0 , < 6.3.9600.23470
(custom)
|
|
| Microsoft | Windows Server 2016 |
Affected:
10.0.14393.0 , < 10.0.14393.9612
(custom)
|
|
| Microsoft | Windows Server 2016 (Server Core installation) |
Affected:
10.0.14393.0 , < 10.0.14393.9612
(custom)
|
|
| Microsoft | Windows Server 2019 |
Affected:
10.0.17763.0 , < 10.0.17763.9376
(custom)
|
|
| Microsoft | Windows Server 2019 (Server Core installation) |
Affected:
10.0.17763.0 , < 10.0.17763.9376
(custom)
|
|
| Microsoft | Windows Server 2022 |
Affected:
10.0.20348.0 , < 10.0.20348.5761
(custom)
|
|
| Microsoft | Windows Server 2025 |
Affected:
10.0.26100.0 , < 10.0.26100.33650
(custom)
|
|
| Microsoft | Windows Server 2025 (Server Core installation) |
Affected:
10.0.26100.0 , < 10.0.26100.33650
(custom)
|
Date Public
2026-10-13 14:00
{
"containers": {
"adp": [
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"metrics": [
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"content": {
"id": "CVE-2026-83666",
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"timestamp": "2026-10-08T00:00:00+00:00",
"version": "2.0.3"
},
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}
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"providerMetadata": {
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"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
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{
"platforms": [
"32-bit Systems",
"x64-based Systems"
],
"product": "Windows 10 Version 1607",
"vendor": "Microsoft",
"versions": [
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"lessThan": "10.0.14393.9612",
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CVE-2026-82942 (GCVE-0-2026-82942)
Vulnerability from cvelistv5 – Published: 2026-10-21 12:07 – Updated: 2026-10-30 14:35
VLAI
EPSS
VEX
Title
Apache bRPC: Race Condition on the Shared Socket Input Buffer in the RDMA Transport Causes Remote Denial of Service
Summary
A data race in the RDMA transport of Apache bRPC (versions < 1.18.0) allows a remote client to crash the server process (denial of service) when RDMA is enabled at build time and runtime.
Root Cause:
When a bRPC server negotiates RDMA with a client, the handshake completes on the TCP fd, but the server kept parsing that fd afterwards as if it were still an RPC channel. The TCP-fd input stream and the RDMA QP input stream (driven by CQ events) shared the same Socket::_read_buf, preferred_index and parsing_context without synchronization. In addition, CQ event processing could start while the handshake parsing was still in progress, and the handshake ACK phase could consume bytes belonging to the next protocol. A remote, unauthenticated client that has completed the RDMA handshake can send data on the TCP fd at the same time RDMA messages are being processed, corrupting the shared input buffer and parser state and crashing the server process (CWE-362, availability impact).
Affected Scenarios:
Use a bRPC server with RDMA support enabled (built with BRPC_WITH_RDMA and serving rdma:// / SOCKET_MODE_RDMA sockets) and accept connections from untrusted clients. Deployments without RDMA are not affected.
How to Fix:
(Choose one of the following options)
1. Upgrade bRPC to version 1.18.0, which fixes this issue.
2. Apply this patch: https://github.com/apache/brpc/pull/3505
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-30 14:35 UTC
CWE
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
apache
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/apache/brpc/issues/3479 | |
| https://lists.apache.org/thread/2pf15ojj0vr7rtx95… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache bRPC |
Affected:
0 , < 1.18.0
(semver)
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CVE-2026-82543 (GCVE-0-2026-82543)
Vulnerability from cvelistv5 – Published: 2026-08-30 12:45 – Updated: 2026-08-31 16:48 X_Open Source
VLAI
EPSS
VEX
Title
vastsa FileCodeBox Pickup Limit views.py update_file_usage race condition
Summary
A vulnerability was detected in vastsa FileCodeBox up to 2.3. This vulnerability affects the function update_file_usage of the file apps/base/views.py of the component Pickup Limit Handler. Performing a manipulation results in race condition. It is possible to initiate the attack remotely. The exploit is now public and may be used. Upgrading to version 2.5.0 is able to resolve this issue. The patch is named 8d7d856c62d73badd0797eb4daec8d2ff10a403a. Upgrading the affected component is recommended.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-31 16:48 UTC
CWE
- CWE-362 - Race Condition
Assigner
VulDB
CNA
References
9 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/397060 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/397060/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-82543 | third-party-advisory |
| https://vuldb.com/submit/891416 | third-party-advisory |
| https://github.com/vastsa/FileCodeBox/issues/482 | exploitissue-tracking |
| https://github.com/vastsa/FileCodeBox/pull/487 | issue-trackingpatch |
| https://github.com/vastsa/FileCodeBox/commit/8d7d… | patch |
| https://github.com/vastsa/FileCodeBox/releases/ta… | patch |
| https://github.com/vastsa/FileCodeBox/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| vastsa | FileCodeBox |
Affected:
2.0
Affected: 2.1 Affected: 2.2 Affected: 2.3 Unaffected: 2.5.0 cpe:2.3:a:vastsa:filecodebox:*:*:*:*:*:*:*:* |
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CVE-2026-82416 (GCVE-0-2026-82416)
Vulnerability from cvelistv5 – Published: 2026-10-13 16:20 – Updated: 2026-10-13 20:22
VLAI
EPSS
VEX
Title
FrankenPHP: Cross-request PHP session ID leak in worker mode when the session extension is a shared module
Summary
FrankenPHP is a modern application server for PHP. Prior to 1.12.5, FrankenPHP worker mode can retain PHP session state between requests when the session extension is loaded as a shared module and is unavailable through HAVE_PHP_SESSION at compile time. In this build configuration, frankenphp_reset_session_state() is compiled out, PS(id) can survive a request boundary, and a subsequent session_start() can ignore the new request's cookie because an identifier is already present. Under concurrent requests, session_id() can therefore return another client's identifier or a stale identifier from a previous request on the same worker thread, causing cross-user session exposure, possible session hijacking, and intermittent logout behavior. Builds with the session extension statically linked, including the official static binaries and Docker images, are not affected. This issue is fixed in version 1.12.5.
Severity
7.7 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 20:14 UTC
CWE
Assigner
GitHub_M
CNA
References
4 references
| URL | Tags |
|---|---|
| https://github.com/php/frankenphp/security/adviso… | x_refsource_CONFIRM |
| https://github.com/php/frankenphp/pull/2523 | x_refsource_MISC |
| https://github.com/php/frankenphp/commit/be24d825… | x_refsource_MISC |
| https://github.com/php/frankenphp/releases/tag/ca… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| php | frankenphp |
Affected:
< 1.12.5
|
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CVE-2026-82390 (GCVE-0-2026-82390)
Vulnerability from cvelistv5 – Published: 2026-10-26 16:08 – Updated: 2026-11-04 05:01
VLAI
EPSS
VEX
Title
Cross-session AES key confusion in the Espressif ESP32 hardware crypto driver
Summary
The Espressif AES driver drivers/crypto/crypto_esp32_aes.c advertises a multi-session cipher API — it hands out up to CONFIG_ESP32_CRYPTO_AES_SESSIONS_MAX (default 4) independent sessions, each carrying its own key and direction. The AES peripheral, however, has a single chip-global set of key and mode registers, and aes_begin_session() programmed them exactly once, at session start, outside the aes_lock mutex that serialises the transforms. The per-operation handlers aes_ecb_op(), aes_cbc_op() and aes_ctr_op() then ran aes_hal_transform_block() against whatever key and direction the registers happened to hold.
As a result, once a second session is opened with a different key, every subsequent operation on the first session silently uses the second session's key and direction, and no error is reported. Because the key programming happened outside the lock, the correct usage pattern of "each thread does begin, then op, then free on its own session" also races: a second thread's cipher_begin_session() landing between the first thread's begin and its operation makes that operation run under the second thread's key. An attacker who can induce session creation on the device — for example a protocol peer whose connection causes a session key to be installed — can influence which key is resident when a victim operation runs.
The impact is a cryptographic failure rather than memory corruption: data the application believed it was protecting under one key is encrypted or decrypted under another. Where the resident key is one the attacker knows or supplied, the affected plaintext becomes recoverable by that attacker, and the operation's direction (encrypt versus decrypt) can likewise be inverted. Exposure requires an application that holds two or more concurrent sessions with different keys against this driver; no in-tree Zephyr subsystem does so today (the 802.15.4 security layer, which does open two sessions, uses CCM mode, which this driver rejects), so the risk falls on application code that uses the documented multi-session API.
The fix removes all hardware access from aes_begin_session() and reprograms the key and direction at the top of every operation, inside aes_lock, so the chip-global registers can no longer be observed stale by another session.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-26 16:49 UTC
CWE
- CWE-362 - race
Assigner
zephyr
CNA
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| zephyrproject | zephyr |
Affected:
4.3.0 , < 4.3.2
(semver)
Affected: 4.4.0 , < 4.5.0 (semver) |
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CVE-2026-82364 (GCVE-0-2026-82364)
Vulnerability from cvelistv5 – Published: 2026-08-29 11:00 – Updated: 2026-08-31 22:04
VLAI
EPSS
VEX
Title
macrozheng mall Order Submission submit race condition
Summary
A security vulnerability has been detected in macrozheng mall up to 1.0.3. This impacts an unknown function of the file /order/submit of the component Order Submission. The manipulation leads to race condition. It is possible to initiate the attack remotely. The attack is considered to have high complexity. The exploitability is said to be difficult. The vendor deleted the GitHub issue for this vulnerability without and explanation.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-31 21:17 UTC
CWE
- CWE-362 - Race Condition
Assigner
VulDB
CNA
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/396780 | vdb-entry |
| https://vuldb.com/vuln/396780/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-82364 | third-party-advisory |
| https://vuldb.com/submit/887361 | third-party-advisory |
| https://github.com/macrozheng/mall/issues/983 | issue-tracking |
| https://github.com/macrozheng/mall/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| macrozheng | mall |
Affected:
1.0.0
Affected: 1.0.1 Affected: 1.0.2 Affected: 1.0.3 cpe:2.3:a:macrozheng:mall:*:*:*:*:*:*:*:* |
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CVE-2026-82258 (GCVE-0-2026-82258)
Vulnerability from cvelistv5 – Published: 2026-08-28 10:49 – Updated: 2026-10-08 15:25
VLAI
EPSS
VEX
Title
SvelteKit 2.38.0 before 2.60.1 Cross-User Data Disclosure via query.batch
Summary
SvelteKit versions from 2.38.0 before 2.60.1 contain a race condition in query.batch that allows concurrent requests from different users to merge under a single request context. Attackers can exploit specific timing conditions to access sensitive data from other users' concurrent requests.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-31 18:36 UTC
CWE
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/sveltejs/kit/security/advisori… | vendor-advisory |
| https://www.vulncheck.com/advisories/sveltekit-2.… | third-party-advisory |
Impacted products
Date Public
2026-05-14 00:00
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CVE-2026-81971 (GCVE-0-2026-81971)
Vulnerability from cvelistv5 – Published: 2026-10-13 19:00 – Updated: 2026-10-31 18:08
VLAI
EPSS
VEX
Title
Windows NTFS Elevation of Privilege Vulnerability
Summary
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows NTFS allows an authorized attacker to elevate privileges locally.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 20:41 UTC
CWE
Assigner
microsoft
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
21 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Windows 10 Version 1607 |
Affected:
10.0.14393.0 , < 10.0.14393.9612
(custom)
|
|
| Microsoft | Windows 10 Version 1809 |
Affected:
10.0.17763.0 , < 10.0.17763.9376
(custom)
|
|
| Microsoft | Windows 10 Version 21H2 |
Affected:
10.0.19044.0 , < 10.0.19044.7807
(custom)
|
|
| Microsoft | Windows 10 Version 22H2 |
Affected:
10.0.19045.0 , < 10.0.19045.7807
(custom)
|
|
| Microsoft | Windows 11 version 23H2 |
Affected:
10.0.22631.0 , < 10.0.22631.7652
(custom)
|
|
| Microsoft | Windows 11 Version 23H2 |
Affected:
10.0.22631.0 , < 10.0.22631.7652
(custom)
|
|
| Microsoft | Windows 11 Version 24H2 |
Affected:
10.0.26100.0 , < 10.0.26100.9711
(custom)
|
|
| Microsoft | Windows 11 Version 25H2 |
Affected:
10.0.26200.0 , < 10.0.26200.9711
(custom)
|
|
| Microsoft | Windows 11 version 26H1 |
Affected:
10.0.28000.0 , < 10.0.28000.3231
(custom)
|
|
| Microsoft | Windows 11 Version 26H2 |
Affected:
10.0.26300.0 , < 10.0.26300.9711
(custom)
|
|
| Microsoft | Windows Server 2012 |
Affected:
6.2.9200.0 , < 6.2.9200.26434
(custom)
|
|
| Microsoft | Windows Server 2012 (Server Core installation) |
Affected:
6.2.9200.0 , < 6.2.9200.26434
(custom)
|
|
| Microsoft | Windows Server 2012 R2 |
Affected:
6.3.9600.0 , < 6.3.9600.23470
(custom)
|
|
| Microsoft | Windows Server 2012 R2 (Server Core installation) |
Affected:
6.3.9600.0 , < 6.3.9600.23470
(custom)
|
|
| Microsoft | Windows Server 2016 |
Affected:
10.0.14393.0 , < 10.0.14393.9612
(custom)
|
|
| Microsoft | Windows Server 2016 (Server Core installation) |
Affected:
10.0.14393.0 , < 10.0.14393.9612
(custom)
|
|
| Microsoft | Windows Server 2019 |
Affected:
10.0.17763.0 , < 10.0.17763.9376
(custom)
|
|
| Microsoft | Windows Server 2019 (Server Core installation) |
Affected:
10.0.17763.0 , < 10.0.17763.9376
(custom)
|
|
| Microsoft | Windows Server 2022 |
Affected:
10.0.20348.0 , < 10.0.20348.5761
(custom)
|
|
| Microsoft | Windows Server 2025 |
Affected:
10.0.26100.0 , < 10.0.26100.33650
(custom)
|
|
| Microsoft | Windows Server 2025 (Server Core installation) |
Affected:
10.0.26100.0 , < 10.0.26100.33650
(custom)
|
Date Public
2026-10-13 14:00
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CVE-2026-79625 (GCVE-0-2026-79625)
Vulnerability from cvelistv5 – Published: 2026-09-30 09:23 – Updated: 2026-09-30 13:49
VLAI
EPSS
VEX
Title
Improper Synchronization in Monitoring in CODESYS Control Runtime
Summary
Affected products do not properly synchronize access to their monitoring functionality. When multiple clients send concurrent requests, this may lead to incorrect reads or writes, or to corruption of internal memory structures. An authenticated remote attacker with monitoring access can exploit this issue to cause incorrect data processing or a denial-of-service condition.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 13:49 UTC
CWE
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
CERTVDE
CNA
References
1 reference
Impacted products
18 products
| Vendor | Product | Version | |
|---|---|---|---|
| CODESYS | Control RTE (SL) |
Affected:
3.0.0.0 , < 3.5.22.40
(semver)
|
|
| CODESYS | Control RTE (for Beckhoff CX) SL |
Affected:
3.0.0.0 , < 3.5.22.40
(semver)
|
|
| CODESYS | Control Win (SL) |
Affected:
3.0.0.0 , < 3.5.22.40
(semver)
|
|
| CODESYS | Runtime Toolkit |
Affected:
3.0.0.0 , < 3.5.22.40
(semver)
|
|
| CODESYS | Safety SIL2 |
Affected:
3.0.0.0 , < 3.5.22.40
(semver)
|
|
| CODESYS | HMI (SL) |
Affected:
3.0.0.0 , < 3.5.22.40
(semver)
|
|
| CODESYS | Development System 3 |
Affected:
3.0.0.0 , < 3.5.22.40
(semver)
|
|
| CODESYS | Control for BeagleBone SL |
Affected:
3.5.0.0 , < 4.23.0.0
(semver)
|
|
| CODESYS | Control for emPC-A/iMX6 SL |
Affected:
3.5.0.0 , < 4.23.0.0
(semver)
|
|
| CODESYS | Control for IOT2000 SL |
Affected:
3.5.0.0 , < 4.23.0.0
(semver)
|
|
| CODESYS | Control for Linux ARM SL |
Affected:
3.5.0.0 , < 4.23.0.0
(semver)
|
|
| CODESYS | Control for Linux SL |
Affected:
3.5.0.0 , < 4.23.0.0
(semver)
|
|
| CODESYS | Control for PFC100 SL |
Affected:
3.5.0.0 , < 4.23.0.0
(semver)
|
|
| CODESYS | Control for PFC200 SL |
Affected:
3.5.0.0 , < 4.23.0.0
(semver)
|
|
| CODESYS | Control for PLCnext SL |
Affected:
3.5.0.0 , < 4.23.0.0
(semver)
|
|
| CODESYS | Control for Raspberry Pi SL |
Affected:
3.5.0.0 , < 4.23.0.0
(semver)
|
|
| CODESYS | Control for WAGO Touch Panels 600 SL |
Affected:
3.5.0.0 , < 4.23.0.0
(semver)
|
|
| CODESYS | Virtual Control SL |
Affected:
3.5.0.0 , < 4.23.0.0
(semver)
|
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},
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"defaultStatus": "unaffected",
"product": "Control for PFC100 SL",
"vendor": "CODESYS",
"versions": [
{
"lessThan": "4.23.0.0",
"status": "affected",
"version": "3.5.0.0",
"versionType": "semver"
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Mitigation
Architecture and Design
In languages that support it, use synchronization primitives. Only wrap these around critical code to minimize the impact on performance.
Mitigation
Architecture and Design
Use thread-safe capabilities such as the data access abstraction in Spring.
Mitigation
Architecture and Design
- Minimize the usage of shared resources in order to remove as much complexity as possible from the control flow and to reduce the likelihood of unexpected conditions occurring.
- Additionally, this will minimize the amount of synchronization necessary and may even help to reduce the likelihood of a denial of service where an attacker may be able to repeatedly trigger a critical section (CWE-400).
Mitigation
Implementation
When using multithreading and operating on shared variables, only use thread-safe functions.
Mitigation
Implementation
Use atomic operations on shared variables. Be wary of innocent-looking constructs such as "x++". This may appear atomic at the code layer, but it is actually non-atomic at the instruction layer, since it involves a read, followed by a computation, followed by a write.
Mitigation
Implementation
Use a mutex if available, but be sure to avoid related weaknesses such as CWE-412.
Mitigation
Implementation
Avoid double-checked locking (CWE-609) and other implementation errors that arise when trying to avoid the overhead of synchronization.
Mitigation
Implementation
Disable interrupts or signals over critical parts of the code, but also make sure that the code does not go into a large or infinite loop.
Mitigation
Implementation
Use the volatile type modifier for critical variables to avoid unexpected compiler optimization or reordering. This does not necessarily solve the synchronization problem, but it can help.
Mitigation MIT-17
Architecture and Design
Operation
Strategy: Environment Hardening
Run your code using the lowest privileges that are required to accomplish the necessary tasks [REF-76]. If possible, create isolated accounts with limited privileges that are only used for a single task. That way, a successful attack will not immediately give the attacker access to the rest of the software or its environment. For example, database applications rarely need to run as the database administrator, especially in day-to-day operations.
CAPEC-26: Leveraging Race Conditions
The adversary targets a race condition occurring when multiple processes access and manipulate the same resource concurrently, and the outcome of the execution depends on the particular order in which the access takes place. The adversary can leverage a race condition by "running the race", modifying the resource and modifying the normal execution flow. For instance, a race condition can occur while accessing a file: the adversary can trick the system by replacing the original file with their version and cause the system to read the malicious file.
CAPEC-29: Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions
This attack targets a race condition occurring between the time of check (state) for a resource and the time of use of a resource. A typical example is file access. The adversary can leverage a file access race condition by "running the race", meaning that they would modify the resource between the first time the target program accesses the file and the time the target program uses the file. During that period of time, the adversary could replace or modify the file, causing the application to behave unexpectedly.