Common Weakness Enumeration
CWE-862
Allowed-with-ReviewMissing Authorization
Abstraction: Class · Status: Incomplete
The product does not perform an authorization check when an actor attempts to access a resource or perform an action.
9131 vulnerabilities reference this CWE, most recent first.
CVE-2026-20535 (GCVE-0-2026-20535)
Vulnerability from cvelistv5 – Published: 2026-10-05 01:40 – Updated: 2026-10-06 03:55
VLAI
EPSS
VEX
Summary
In aidl, there is a possible escalation of privilege due to a missing permission check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11185216; Issue ID: MSV-9039.
Severity
6.7 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-05 00:00 UTC
CWE
- CWE-862 - Missing Authorization
Assigner
MediaTek
CNA
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MediaTek, Inc. | MediaTek chipset |
Affected:
MT6878
Affected: MT6881 Affected: MT6899 Affected: MT6989 Affected: MT6991 Affected: MT6993 Affected: MT8188 Affected: MT8189 Affected: MT8668 Affected: MT8781 Affected: MT8793 Affected: MT8910 |
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CVE-2026-20495 (GCVE-0-2026-20495)
Vulnerability from cvelistv5 – Published: 2026-08-03 02:06 – Updated: 2026-08-05 13:34
VLAI
EPSS
VEX
Summary
In Bluetooth driver, there is a possible permission bypass due to a missing permission check. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00488300; Issue ID: MSV-7296.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-05 03:56 UTC
CWE
- CWE-862 - Missing Authorization
Assigner
MediaTek
CNA
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MediaTek, Inc. | MediaTek chipset |
Affected:
MT7902
Affected: MT7920 Affected: MT7921 Affected: MT7922 Affected: MT7925 Affected: MT7927 |
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CVE-2026-20483 (GCVE-0-2026-20483)
Vulnerability from cvelistv5 – Published: 2026-08-03 02:05 – Updated: 2026-08-05 03:56
VLAI
EPSS
VEX
Summary
In Telephony, there is a possible escalation of privilege due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11087526; Issue ID: MSV-8243.
Severity
7.7 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-04 00:00 UTC
CWE
- CWE-862 - Missing Authorization
Assigner
MediaTek
CNA
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MediaTek, Inc. | MediaTek chipset |
Affected:
MT6739
Affected: MT6761 Affected: MT6765 Affected: MT6768 Affected: MT6781 Affected: MT6789 Affected: MT6833 Affected: MT6835 Affected: MT6853 Affected: MT6855 Affected: MT6877 Affected: MT6878 Affected: MT6879 Affected: MT6883 Affected: MT6885 Affected: MT6886 Affected: MT6889 Affected: MT6893 Affected: MT6895 Affected: MT6897 Affected: MT6983 Affected: MT6985 Affected: MT6989 Affected: MT6991 Affected: MT6993 Affected: MT8766 Affected: MT8766R Affected: MT8768 Affected: MT8775 Affected: MT8781 Affected: MT8792 Affected: MT8796 Affected: MT8873 Affected: MT8883 Affected: MT8893 |
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CVE-2026-20328 (GCVE-0-2026-20328)
Vulnerability from cvelistv5 – Published: 2026-10-07 16:12 – Updated: 2026-10-08 13:04
VLAI
EPSS
VEX
Title
Cisco Smart Software Manager On-Prem Arbitrary Account Password Reset Vulnerability
Summary
A vulnerability in the web-based management interface of Cisco License On-Prem, formerly Cisco Smart Software Manager On-Prem (SSM On-Prem), could allow an unauthenticated, remote attacker to gain unauthorized access to an affected application.
This vulnerability is due to improper checks during the password reset process. An attacker could exploit this vulnerability by sending a malicious request to the web-based management interface. A successful exploit could allow the attacker to reset the password of an arbitrary account, including high-privileged administrative user accounts, possibly allowing the attacker to gain unauthorized access to the application as any user.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 03:55 UTC
CWE
- CWE-862 - Missing Authorization
Assigner
cisco
CNA
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco License On-Prem |
Affected:
7-202001
Affected: 1.1 Affected: 6.3.0 Affected: 8-202004 Affected: 8-202006 Affected: 1.2 Affected: 1.3 Affected: 8-202012 Affected: 8-202010 Affected: 8-202008 Affected: 9-202201 Affected: 8-202102 Affected: 1.4 Affected: 8-202105 Affected: 8-202108 Affected: 8-202112 Affected: 8-202201 Affected: 8-202206 Affected: 8-202212 Affected: 8-202302 Affected: 8-202303 Affected: 8-202304 Affected: 8-202308 Affected: 8-202401 Affected: 8-202404 Affected: 9-202406 Affected: 9-202407 Affected: 9-202410 Affected: 9-202412 Affected: 9-202501 Affected: 9-202502 Affected: 9-202504 Affected: 9-202507 Affected: 9-202510 Affected: 9-202601 Affected: 10-202606 |
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CVE-2026-20324 (GCVE-0-2026-20324)
Vulnerability from cvelistv5 – Published: 2026-09-16 20:06 – Updated: 2026-09-18 03:55
VLAI
EPSS
VEX
Title
Cisco Secure Firewall Management Center sftunnel Root Arbitrary Code Exectution Vulnerability
Summary
A vulnerability in the sftunnel inter-device communication protocol of Cisco Secure Firewall Management Center (FMC) Software could allow an authenticated, remote attacker to execute arbitrary commands as root.
This vulnerability exists because a registered sftunnel peer has incorrect permissions to write an arbitrary file to any location on the device. An attacker could exploit this vulnerability by hijacking the sftunnel communication connection or being a valid registered sftunnel peer and sending an sftunnel command to write a malicious file to the disk of an affected device. A successful exploit could allow the attacker to write a file to the device that is executed with root privileges. To exploit this vulnerability, the attacker must have valid user credentials on the affected device.
Severity
9.9 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-17 00:00 UTC
CWE
- CWE-862 - Missing Authorization
Assigner
cisco
CNA
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco Secure Firewall Management Center (FMC) |
Affected:
7.0.0
Affected: 7.0.0.1 Affected: 7.0.1 Affected: 7.0.1.1 Affected: 7.0.2 Affected: 7.2.0 Affected: 7.0.2.1 Affected: 7.0.3 Affected: 7.2.0.1 Affected: 7.0.4 Affected: 7.2.1 Affected: 7.0.5 Affected: 7.3.0 Affected: 7.2.2 Affected: 7.3.1 Affected: 7.2.3 Affected: 7.2.3.1 Affected: 7.2.4 Affected: 7.0.6 Affected: 7.2.4.1 Affected: 7.2.5 Affected: 7.3.1.1 Affected: 7.4.0 Affected: 7.0.6.1 Affected: 7.2.5.1 Affected: 7.4.1 Affected: 7.2.6 Affected: 7.4.1.1 Affected: 7.0.6.2 Affected: 7.2.7 Affected: 7.2.5.2 Affected: 7.3.1.2 Affected: 7.2.8 Affected: 7.6.0 Affected: 7.4.2 Affected: 7.2.8.1 Affected: 7.0.6.3 Affected: 7.4.2.1 Affected: 7.2.9 Affected: 7.0.7 Affected: 7.7.0 Affected: 7.4.2.2 Affected: 7.2.10 Affected: 7.6.1 Affected: 7.4.2.3 Affected: 7.0.8 Affected: 7.6.2 Affected: 7.7.10 Affected: 7.2.10.1 Affected: 7.0.8.1 Affected: 7.6.2.1 Affected: 7.2.10.2 Affected: 7.7.10.1 Affected: 7.4.2.4 Affected: 7.4.3 Affected: 7.6.3 Affected: 7.7.11 Affected: 7.6.4 Affected: 10.0.0 Affected: 7.4.4 Affected: 7.4.5 Affected: 7.0.9 Affected: 7.2.11 Affected: 7.7.12 Affected: 7.6.5 Affected: 7.4.6 Affected: 10.0.1 Affected: 7.4.7 |
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CVE-2026-20193 (GCVE-0-2026-20193)
Vulnerability from cvelistv5 – Published: 2026-05-06 16:15 – Updated: 2026-05-06 17:48
VLAI
EPSS
VEX
Title
Cisco Identity Services Engine Authentication Bypass Vulnerability
Summary
A vulnerability in the RADIUS Policy API endpoints of Cisco ISE could allow an authenticated, remote attacker with read-only Administrator privileges to gain unauthorized access to sensitive information on an affected device.
This vulnerability is due to improper role-based access control (RBAC) permissions on the RADIUS Policy API endpoints. An attacker could exploit this vulnerability by bypassing the web-based management interface and directly calling an affected endpoint. A successful exploit could allow the attacker to gain unauthorized read access to sensitive RADIUS Policy details that are restricted for their role.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-06 17:35 UTC
CWE
- CWE-862 - Missing Authorization
Assigner
cisco
CNA
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco Identity Services Engine Software |
Affected:
3.3.0
Affected: 3.3 Patch 2 Affected: 3.3 Patch 1 Affected: 3.3 Patch 3 Affected: 3.4.0 Affected: 3.3 Patch 4 Affected: 3.4 Patch 1 Affected: 3.3 Patch 5 Affected: 3.3 Patch 6 Affected: 3.4 Patch 2 Affected: 3.3 Patch 7 Affected: 3.4 Patch 3 Affected: 3.5.0 Affected: 3.4 Patch 4 Affected: 3.3 Patch 8 Affected: 3.5 Patch 1 Affected: 3.3 Patch 9 Affected: 3.4 Patch 5 Affected: 3.5 Patch 3 Affected: 3.5 Patch 2 Affected: 3.3 Patch 10 |
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CVE-2026-20189 (GCVE-0-2026-20189)
Vulnerability from cvelistv5 – Published: 2026-05-06 16:15 – Updated: 2026-05-06 17:48
VLAI
EPSS
VEX
Title
Cisco Prime Infrastructure Information Disclosure Vulnerability
Summary
A vulnerability in the log file download functionality of Cisco Prime Infrastructure could allow an authenticated, remote attacker to download arbitrary log files from the server.
This vulnerability is due to insufficient authorization checks on the download service API. An attacker could exploit this vulnerability by submitting a crafted URL request to an affected device. A successful exploit could allow the attacker to download sensitive log files that they would otherwise not have authorization to access.
To exploit this vulnerability, the attacker must have valid credentials to access the web-based management interface of the affected device.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-06 17:46 UTC
CWE
- CWE-862 - Missing Authorization
Assigner
cisco
CNA
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco Prime Infrastructure |
Affected:
3.6.0
Affected: 3.7.0 Affected: 3.4.0 Affected: 3.3.0 Affected: 3.5.0 Affected: 3.2.0-FIPS Affected: 3.8.0-FED Affected: 3.9.0 Affected: 3.8.0 Affected: 3.10.0 Affected: 3.9.1 Affected: 3.8.1 Affected: 3.7.1 Affected: 3.5.1 Affected: 3.4.2 Affected: 3.3.1 Affected: 3.2.1 Affected: 3.2.2 Affected: 3.4.1 Affected: 3.10.2 Affected: 3.10.3 Affected: 3.10 Affected: 3.10.1 Affected: 3.7.1 Update 03 Affected: 3.7.1 Update 04 Affected: 3.7.1 Update 06 Affected: 3.7.1 Update 07 Affected: 3.8.1 Update 01 Affected: 3.8.1 Update 02 Affected: 3.8.1 Update 03 Affected: 3.8.1 Update 04 Affected: 3.9.1 Update 01 Affected: 3.9.1 Update 02 Affected: 3.9.1 Update 03 Affected: 3.9.1 Update 04 Affected: 3.10 Update 01 Affected: 3.4.2 Update 01 Affected: 3.6.0 Update 04 Affected: 3.6.0 Update 02 Affected: 3.6.0 Update 03 Affected: 3.6.0 Update 01 Affected: 3.5.1 Update 03 Affected: 3.5.1 Update 01 Affected: 3.5.1 Update 02 Affected: 3.7.0 Update 03 Affected: 3.8.0 Update 01 Affected: 3.8.0 Update 02 Affected: 3.7.1 Update 01 Affected: 3.7.1 Update 02 Affected: 3.7.1 Update 05 Affected: 3.9.0 Update 01 Affected: 3.3.0 Update 01 Affected: 3.4.1 Update 02 Affected: 3.4.1 Update 01 Affected: 3.5.0 Update 03 Affected: 3.5.0 Update 01 Affected: 3.5.0 Update 02 Affected: 3.10.4 Affected: 3.10.4 Update 01 Affected: 3.10.4 Update 02 Affected: 3.10.4 Update 03 Affected: 3.10.5 Affected: 3.10.6 Affected: 3.10.6 Update 01 Affected: 3.10.6 Update 02 |
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CVE-2026-20155 (GCVE-0-2026-20155)
Vulnerability from cvelistv5 – Published: 2026-04-01 16:29 – Updated: 2026-04-01 18:19
VLAI
EPSS
VEX
Title
Cisco Evolved Programmable Network Manager Improper Authorization Vulnerability
Summary
A vulnerability in the web-based management interface of Cisco Evolved Programmable Network Manager (EPNM) could allow an authenticated, remote attacker with low privileges to access sensitive information that they are not authorized to access.
This vulnerability is due to improper authorization checks on a REST API endpoint of an affected device. An attacker could exploit this vulnerability by querying the affected endpoint. A successful exploit could allow the attacker to view session information of active Cisco EPNM users, including users with administrative privileges, which could result in the affected device being compromised.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-01 18:19 UTC
CWE
- CWE-862 - Missing Authorization
Assigner
cisco
CNA
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco Evolved Programmable Network Manager (EPNM) |
Affected:
7.1.1
Affected: 7.1.2.1 Affected: 7.1.3 Affected: 7.1.2 Affected: 7.1.0 Affected: 8.0.0 Affected: 8.0.0.1 Affected: 7.1.3.1 Affected: 7.1.4 Affected: 8.1.0 Affected: 8.1.1 Affected: 8.0.1 Affected: 7.1.4.1 Affected: 8.0.1.1 |
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CVE-2026-19948 (GCVE-0-2026-19948)
Vulnerability from cvelistv5 – Published: 2026-09-01 04:27 – Updated: 2026-09-01 17:55
VLAI
EPSS
VEX
Title
Cozy Blocks <= 2.2.17 - Missing Authorization to Unauthenticated Unpublished Product Information Disclosure via 'wishlistData' Parameter
Summary
The Cozy Blocks – Page Builder for Gutenberg Editor & FSE with 700+ Patterns, 58 Blocks & Templates plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 2.2.17. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to retrieve the name, price, short description, image URL, permalink, stock status, and product type of draft, pending, private, and catalog-hidden WooCommerce products not intended to be publicly visible. The sidebarNonce value is emitted unconditionally into public page HTML by multiple block renderers with no login gate, allowing unauthenticated visitors to harvest a valid nonce and pass the only authentication check in the handler.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-01 17:55 UTC
CWE
- CWE-862 - Missing Authorization
Assigner
Wordfence
CNA
References
9 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| cozythemes | Cozy Blocks – Page Builder for Gutenberg Editor & FSE with 700+ Patterns, 58 Blocks & Templates |
Affected:
0 , ≤ 2.2.17
(semver)
|
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CVE-2026-19947 (GCVE-0-2026-19947)
Vulnerability from cvelistv5 – Published: 2026-10-21 18:19 – Updated: 2026-10-23 21:23
VLAI
EPSS
VEX
Title
Missing kernel object permission check in devmux syscalls allows unprivileged user threads to retarget a device multiplexer
Summary
The device multiplexer pseudo-driver in drivers/misc/devmux/devmux.c exposes two system calls, devmux_select_get() and devmux_select_set(). When CONFIG_USERSPACE is enabled, their user-mode verifiers z_vrfy_devmux_select_get() and z_vrfy_devmux_select_set() forwarded directly to the kernel implementations without performing any kernel-object validation — no k_object_access_check() and no driver object check. Compounding this, DEVICE_DT_INST_DEFINE() registered devmux instances with a NULL driver API pointer, which causes scripts/build/gen_kobject_list.py to skip them entirely, so a devmux device had no struct k_object and no permission on it could be granted or withheld in the first place.
Any thread running in user mode can reach the defect: device pointers such as DEVICE_DT_GET(DT_NODELABEL(devmux0)) are compile-time constants available to application code, and the syscall accepted them from a thread that had never been granted access to the device. The kernel implementations do validate the pointer against the static devmux instance table and bounds-check the selection index, so this is not a memory-safety issue; the failure is purely one of authorization. Exposure requires CONFIG_USERSPACE=y together with the experimental CONFIG_DEVMUX=y (which depends on CONFIG_DEVICE_MUTABLE) and a zephyr,devmux devicetree node.
An unprivileged user-mode thread can read and change which downstream device a multiplexer forwards to, bypassing the userspace object-permission model. Because a devmux forwards the data, configuration and API of the selected device — its documented use being zephyr,console and zephyr,shell-uart switching — an attacker can suppress console, log and shell output, redirect that output to a downstream device it is able to observe, or flip the selection underneath another thread that is legitimately using the multiplexer. The impact is bounded to the devicetree-fixed set of downstream devices; no out-of-bounds access or arbitrary pointer dereference is reachable.
The fix declares __subsystem struct devmux_driver_api and attaches a DEVICE_API(devmux, devmux_api) instance to each devmux device so that it becomes a tracked K_OBJ_DRIVER_DEVMUX kernel object, and adds K_OOPS(devmux_inst_get(dev) == SIZE_MAX) plus K_OOPS(k_object_access_check(dev) != 0) to both verifiers.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-23 20:43 UTC
CWE
- CWE-862 - auth
Assigner
zephyr
CNA
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| zephyrproject | zephyr |
Affected:
3.6.0 , < 4.5.0
(semver)
|
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"packageName": "zephyr",
"product": "zephyr",
"programFiles": [
"drivers/misc/devmux/devmux.c",
"include/zephyr/drivers/misc/devmux/devmux.h"
],
"programRoutines": [
{
"name": "z_vrfy_devmux_select_get"
},
{
"name": "z_vrfy_devmux_select_set"
}
],
"vendor": "zephyrproject",
"versions": [
{
"lessThan": "4.5.0",
"status": "affected",
"version": "3.6.0",
"versionType": "semver"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "The device multiplexer pseudo-driver in drivers/misc/devmux/devmux.c exposes two system calls, devmux_select_get() and devmux_select_set(). When CONFIG_USERSPACE is enabled, their user-mode verifiers z_vrfy_devmux_select_get() and z_vrfy_devmux_select_set() forwarded directly to the kernel implementations without performing any kernel-object validation \u2014 no k_object_access_check() and no driver object check. Compounding this, DEVICE_DT_INST_DEFINE() registered devmux instances with a NULL driver API pointer, which causes scripts/build/gen_kobject_list.py to skip them entirely, so a devmux device had no struct k_object and no permission on it could be granted or withheld in the first place.\n\nAny thread running in user mode can reach the defect: device pointers such as DEVICE_DT_GET(DT_NODELABEL(devmux0)) are compile-time constants available to application code, and the syscall accepted them from a thread that had never been granted access to the device. The kernel implementations do validate the pointer against the static devmux instance table and bounds-check the selection index, so this is not a memory-safety issue; the failure is purely one of authorization. Exposure requires CONFIG_USERSPACE=y together with the experimental CONFIG_DEVMUX=y (which depends on CONFIG_DEVICE_MUTABLE) and a zephyr,devmux devicetree node.\n\nAn unprivileged user-mode thread can read and change which downstream device a multiplexer forwards to, bypassing the userspace object-permission model. Because a devmux forwards the data, configuration and API of the selected device \u2014 its documented use being zephyr,console and zephyr,shell-uart switching \u2014 an attacker can suppress console, log and shell output, redirect that output to a downstream device it is able to observe, or flip the selection underneath another thread that is legitimately using the multiplexer. The impact is bounded to the devicetree-fixed set of downstream devices; no out-of-bounds access or arbitrary pointer dereference is reachable.\n\nThe fix declares __subsystem struct devmux_driver_api and attaches a DEVICE_API(devmux, devmux_api) instance to each devmux device so that it becomes a tracked K_OBJ_DRIVER_DEVMUX kernel object, and adds K_OOPS(devmux_inst_get(dev) == SIZE_MAX) plus K_OOPS(k_object_access_check(dev) != 0) to both verifiers."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-862",
"description": "auth",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-21T18:19:35.637Z",
"orgId": "e2e69745-5e70-4e92-8431-deb5529a81ad",
"shortName": "zephyr"
},
"references": [
{
"name": "Fix commit",
"tags": [
"patch"
],
"url": "https://github.com/zephyrproject-rtos/zephyr/commit/4b7f98345d8f894f4b8aabe52a2623d843669fac"
},
{
"name": "GHSA-8m8g-f5jf-x28x",
"url": "https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-8m8g-f5jf-x28x"
}
],
"title": "Missing kernel object permission check in devmux syscalls allows unprivileged user threads to retarget a device multiplexer",
"x_generator": {
"engine": "cvelib 1.8.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "e2e69745-5e70-4e92-8431-deb5529a81ad",
"assignerShortName": "zephyr",
"cveId": "CVE-2026-19947",
"datePublished": "2026-10-21T18:19:35.637Z",
"dateReserved": "2026-08-15T18:43:26.567Z",
"dateUpdated": "2026-10-23T21:23:27.801Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
Mitigation
Architecture and Design
- Divide the product into anonymous, normal, privileged, and administrative areas. Reduce the attack surface by carefully mapping roles with data and functionality. Use role-based access control (RBAC) [REF-229] to enforce the roles at the appropriate boundaries.
- Note that this approach may not protect against horizontal authorization, i.e., it will not protect a user from attacking others with the same role.
Mitigation
Architecture and Design
Ensure that access control checks are performed related to the business logic. These checks may be different than the access control checks that are applied to more generic resources such as files, connections, processes, memory, and database records. For example, a database may restrict access for medical records to a specific database user, but each record might only be intended to be accessible to the patient and the patient's doctor [REF-7].
Mitigation MIT-4.4
Architecture and Design
Strategy: Libraries or Frameworks
- Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
- For example, consider using authorization frameworks such as the JAAS Authorization Framework [REF-233] and the OWASP ESAPI Access Control feature [REF-45].
Mitigation
Architecture and Design
- For web applications, make sure that the access control mechanism is enforced correctly at the server side on every page. Users should not be able to access any unauthorized functionality or information by simply requesting direct access to that page.
- One way to do this is to ensure that all pages containing sensitive information are not cached, and that all such pages restrict access to requests that are accompanied by an active and authenticated session token associated with a user who has the required permissions to access that page.
Mitigation
System Configuration
Installation
Use the access control capabilities of your operating system and server environment and define your access control lists accordingly. Use a "default deny" policy when defining these ACLs.
CAPEC-665: Exploitation of Thunderbolt Protection Flaws
An adversary leverages a firmware weakness within the Thunderbolt protocol, on a computing device to manipulate Thunderbolt controller firmware in order to exploit vulnerabilities in the implementation of authorization and verification schemes within Thunderbolt protection mechanisms. Upon gaining physical access to a target device, the adversary conducts high-level firmware manipulation of the victim Thunderbolt controller SPI (Serial Peripheral Interface) flash, through the use of a SPI Programing device and an external Thunderbolt device, typically as the target device is booting up. If successful, this allows the adversary to modify memory, subvert authentication mechanisms, spoof identities and content, and extract data and memory from the target device. Currently 7 major vulnerabilities exist within Thunderbolt protocol with 9 attack vectors as noted in the Execution Flow.