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-2026-94300 (GCVE-0-2026-94300)
Vulnerability from cvelistv5 – Published: 2026-10-21 12:45 – Updated: 2026-10-22 23:04
VLAI
EPSS
VEX
Title
Concurrent GSS-TSIG messages corrupt memory
Summary
Replaying GSS-TSIG signed UDP messages can result in memory corruption in "`named`". An attacker who can capture a previously signed UDP message can replay it while the negotiated TSIG key is still valid. By also sending crafted queries to a zone the attacker controls, the attacker may potentially achieve remote code execution.
This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.29, 9.21.0 through 9.21.26, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.29-S1.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-21 00:00 UTC
CWE
Assigner
isc
CNA
References
3 references
| URL | Tags |
|---|---|
| https://kb.isc.org/docs/cve-2026-94300 | vendor-advisory |
| https://downloads.isc.org/isc/bind9/9.20.30 | patch |
| https://downloads.isc.org/isc/bind9/9.21.27 | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ISC | BIND 9 |
Affected:
9.11.0 , ≤ 9.18.50
(custom)
Affected: 9.20.0 , ≤ 9.20.29 (custom) Affected: 9.21.0 , ≤ 9.21.26 (custom) Affected: 9.11.3-S1 , ≤ 9.18.50-S1 (custom) Affected: 9.20.9-S1 , ≤ 9.20.29-S1 (custom) cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* |
Date Public
2026-10-21 00:00
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CVE-2026-94043 (GCVE-0-2026-94043)
Vulnerability from cvelistv5 – Published: 2026-09-20 18:00 – Updated: 2026-09-21 19:50 X_Open Source
VLAI
EPSS
VEX
Title
Free5GC Gmm handler.go race condition
Summary
A vulnerability was determined in Free5GC up to 4.2.3. This vulnerability affects unknown code of the file /corefuzzer_deps/free5gc/NFs/amf/internal/gmm/handler.go of the component Gmm Handler. This manipulation causes race condition. The attack can be initiated remotely. Patch name: e323b01464355781b8b8d5dd695e05cbc00a62f2. To fix this issue, it is recommended to deploy a patch.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-21 19:49 UTC
CWE
- CWE-362 - Race Condition
Assigner
VulDB
CNA
References
8 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/407972 | vdb-entry |
| https://vuldb.com/vuln/407972/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-94043 | third-party-advisory |
| https://vuldb.com/submit/949261 | third-party-advisory |
| https://github.com/free5gc/free5gc/issues/1109 | issue-tracking |
| https://github.com/free5gc/amf/pull/238 | issue-trackingpatch |
| https://github.com/free5gc/amf/commit/e323b014643… | patch |
| https://github.com/free5gc/free5gc/ | product |
Impacted products
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CVE-2026-93694 (GCVE-0-2026-93694)
Vulnerability from cvelistv5 – Published: 2026-10-12 12:50 – Updated: 2026-10-12 14:43
VLAI
EPSS
VEX
Title
Untrusted request routing and forged acknowledgements permit copy-workflow manipulation in Progress ShareFile Storage Zones Controller
Summary
In Progress ShareFile Storage Zones Controller v5.12.6 and below, processing of queue items can send acknowledgements to an unvalidated callback URL, this behavior together with a race condition allows the attacker to cause FileCopyService to consume attacker-controlled metadata and content. Exploitation requires control over copy queue work and a race condition.
Severity
4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-12 13:53 UTC
CWE
Assigner
ProgressSoftware
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://docs.sharefile.com/en-us/sharefile/storag… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Progress | ShareFile Storage Zones Controller |
Affected:
0 , ≤ 5.12.6
(semver)
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CVE-2026-92694 (GCVE-0-2026-92694)
Vulnerability from cvelistv5 – Published: 2026-11-05 22:29 – Updated: 2026-11-09 17:41
VLAI
EPSS
VEX
Title
FastNetMon: IPv6 host counters map iterated without lock, racing concurrent inserts
Summary
FastNetMon is a high-performance DDoS detector and sensor. In version 1.2.9 and earlier, FastNetMon's IPv6 top-talkers screen-draw thread in draw_table_ipv6() in src/fastnetmon_logic.cpp iterates ipv6_host_counters.average_speed_map without holding counter_map_mutex while recalculate_speed() inserts new keys and may rehash the same map. The race requires networks_list to include the targeted IPv6 range. It causes confirmed undefined behavior under load; a process crash is plausible but was not observed, so reliable denial of service has not been established. No fixed release is available as of this review.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-09 17:36 UTC
CWE
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
GitHub_M
CNA
References
3 references
| URL | Tags |
|---|---|
| https://github.com/pavel-odintsov/fastnetmon/secu… | x_refsource_CONFIRM |
| https://github.com/pavel-odintsov/fastnetmon/pull/1087 | x_refsource_MISC |
| https://github.com/pavel-odintsov/fastnetmon/comm… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| pavel-odintsov | fastnetmon |
Affected:
<= 1.2.9
|
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CVE-2026-92628 (GCVE-0-2026-92628)
Vulnerability from cvelistv5 – Published: 2026-09-23 23:04 – Updated: 2026-09-24 13:11
VLAI
EPSS
VEX
Title
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in GitLab
Summary
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.6 before 19.2.7, 19.3 before 19.3.3, and 19.4 before 19.4.1 that under a race condition, the MCP search tool's shared state handling could have caused search results to be returned under an incorrect user context.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-24 13:10 UTC
CWE
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
GitLab
CNA
References
Impacted products
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CVE-2026-91947 (GCVE-0-2026-91947)
Vulnerability from cvelistv5 – Published: 2026-09-15 15:18 – Updated: 2026-09-16 15:41
VLAI
EPSS
VEX
Title
FreeRDP Server before 3.31.0 Use-After-Free via DRDYNVC
Summary
FreeRDP server versions before 3.31.0 contain a use-after-free vulnerability in the DRDYNVC parser that dereferences a channel pointer after releasing the synchronization lock. Authenticated clients can race AUDIN channel closure messages against DRDYNVC data parsing to trigger heap-use-after-free when accessing freed channel objects.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-16 03:56 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/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-serv… | third-party-advisory |
Impacted products
Date Public
2026-09-01 00:00
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CVE-2026-90506 (GCVE-0-2026-90506)
Vulnerability from cvelistv5 – Published: 2026-09-13 09:15 – Updated: 2026-09-16 13:59 Unsupported When Assigned
VLAI
EPSS
VEX
Title
vvbbnn00 WARP-Clash-API Save Account Job race condition
Summary
A vulnerability was determined in vvbbnn00 WARP-Clash-API up to c7bf2360073959861219b422e51ae86411051b46. This impacts an unknown function of the component Save Account Job. This manipulation causes race condition. The attack may be initiated remotely. The attack's complexity is rated as high. The exploitability is said to be difficult. The exploit has been publicly disclosed and may be utilized. This product uses a rolling release model to deliver continuous updates. As a result, specific version information for affected or updated releases is not available. The vendor was contacted early about this disclosure but did not respond in any way. This vulnerability only affects products that are no longer supported by the maintainer.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-16 13:59 UTC
CWE
- CWE-362 - Race Condition
Assigner
VulDB
CNA
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/403094 | vdb-entry |
| https://vuldb.com/vuln/403094/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-90506 | third-party-advisory |
| https://vuldb.com/submit/895265 | third-party-advisory |
| https://gist.github.com/Galaxync/d09928879331ef9c… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| vvbbnn00 | WARP-Clash-API |
Affected:
c7bf2360073959861219b422e51ae86411051b46
cpe:2.3:a:vvbbnn00:warp-clash-api:*:*:*:*:*:*:*:* |
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CVE-2026-90505 (GCVE-0-2026-90505)
Vulnerability from cvelistv5 – Published: 2026-09-13 09:00 – Updated: 2026-09-14 18:04 Unsupported When Assigned
VLAI
EPSS
VEX
Title
vvbbnn00 WARP-Clash-API doUpdateLicenseKey race condition
Summary
A vulnerability was found in vvbbnn00 WARP-Clash-API up to c7bf2360073959861219b422e51ae86411051b46. This affects the function doUpdateLicenseKey. The manipulation results in race condition. The attack can be launched remotely. The attack requires a high level of complexity. The exploitability is reported as difficult. The exploit has been made public and could be used. This product does not use versioning. This is why information about affected and unaffected releases are unavailable. The vendor was contacted early about this disclosure but did not respond in any way. This vulnerability only affects products that are no longer supported by the maintainer.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-14 18:02 UTC
CWE
- CWE-362 - Race Condition
Assigner
VulDB
CNA
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/403093 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/403093/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-90505 | third-party-advisory |
| https://vuldb.com/submit/895264 | third-party-advisory |
| https://gist.github.com/Galaxync/62748fe998dd8518… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| vvbbnn00 | WARP-Clash-API |
Affected:
c7bf2360073959861219b422e51ae86411051b46
cpe:2.3:a:vvbbnn00:warp-clash-api:*:*:*:*:*:*:*:* |
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CVE-2026-89099 (GCVE-0-2026-89099)
Vulnerability from cvelistv5 – Published: 2026-09-11 17:39 – Updated: 2026-09-11 17:59
VLAI
EPSS
VEX
Title
Race Condition in MongoDB Server Document Value Layer Leads to Memory Corruption
Summary
A race condition in the document value layer of MongoDB Server can allow concurrent server threads to operate on the same internal memory without synchronization, leading to memory corruption. An authenticated user holding ordinary read-write privileges on a database may be able to trigger this condition over the normal client protocol, resulting in server termination and potential corruption of process memory with user-influenced content. Successful use of this issue may impact the confidentiality, integrity, and availability of the affected server process.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-11 17:59 UTC
CWE
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
mongodb
CNA
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MongoDB | MongoDB Server |
Affected:
8.3.0 , < 8.3.11
(semver)
Affected: 8.0 , < 8.0.32 (semver) Affected: 7.0 , < 7.0.43 (semver) |
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CVE-2026-88174 (GCVE-0-2026-88174)
Vulnerability from cvelistv5 – Published: 2026-10-13 19:01 – Updated: 2026-10-31 18:10
VLAI
EPSS
VEX
Title
Windows Deployment Services Remote Code Execution Vulnerability
Summary
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Deployment Services allows an unauthorized attacker to execute code over a network.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 19:52 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
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"datePublic": "2026-10-13T14:00:00.000Z",
"descriptions": [
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"value": "Concurrent execution using shared resource with improper synchronization (\u0027race condition\u0027) in Windows Deployment Services allows an unauthorized attacker to execute code over a network."
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"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C",
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"description": "CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization (\u0027Race Condition\u0027)",
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"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
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"tags": [
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"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88174"
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"title": "Windows Deployment Services Remote Code Execution Vulnerability"
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"dateReserved": "2026-09-09T21:59:30.884Z",
"dateUpdated": "2026-10-31T18:10:05.036Z",
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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.