CVE-2026-20830

Published: Jan 13, 2026

Modified: Apr 1, 2026

PUBLISHED

CVSS v3.1

7.0

HIGH

Description

Concurrent execution using shared resource with improper synchronization ('race condition') in Capability Access Management Service (camsvc) allows an authorized attacker to elevate privileges locally.

Vendor	Product	Versions
Microsoft	Windows Server 2025	affected `10.0.26100.0 - < 10.0.26100.32230`
Microsoft	Windows Server 2025 (Server Core installation)	affected `10.0.26100.0 - < 10.0.26100.32230`

Weaknesses (CWE)

CWE-362

CWE-416

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

Capability Access Management Service (camsvc) Elevation of Privilege Vulnerability

vendor-advisory

patch

Security Training

Train your team to recognize and prevent security threats with our comprehensive security awareness program.

Start Training

Vulnerability Scanning

Discover vulnerabilities in your applications and infrastructure before attackers do.

Scan Now

CVE-2026-20830

Description

Affected Products

Weaknesses (CWE)

CVSS v3.1 Details

References