SB2026011375 - Multiple vulnerabilities in Microsoft Capability Access Management Service (camsvc)

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Main Vulnerability Database SB2026011375

SB2026011375 - Multiple vulnerabilities in Microsoft Capability Access Management Service (camsvc)

Published: January 13, 2026

Security Bulletin ID SB2026011375
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 5
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 5 vulnerabilities.


1) Race condition (CVE-ID: CVE-2026-20815)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a race condition in Capability Access Management Service (camsvc). A local user can exploit the race and escalate privileges on the system.


2) Race condition (CVE-ID: CVE-2026-21221)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a race condition in Capability Access Management Service (camsvc). A local user can exploit the race and escalate privileges on the system.


3) Race condition (CVE-ID: CVE-2026-20830)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a race condition in Capability Access Management Service (camsvc). A local user can exploit the race and escalate privileges on the system.


4) Out-of-bounds read (CVE-ID: CVE-2026-20851)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in Capability Access Management Service (camsvc). A local attacker can trigger an out-of-bounds read error and read contents of memory on the system.


5) Out-of-bounds read (CVE-ID: CVE-2026-20835)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in Capability Access Management Service (camsvc). A local user can trigger an out-of-bounds read error and read contents of memory on the system.


Remediation

Install update from vendor's website.

References