PT-2026-2763 · Unknown+1 · Capability Access Management Service+1

K0Shl𝕏@Keyz3R0 · Published 2026-01-13 · Updated 2026-01-20 · CVE-2026-21221

Positive Technologies (AI Summary)

CVSS v3.1

7.0

High

Base vector

AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Capability Access Management Service (camsvc) (affected versions not specified)

Description A race condition exists due to concurrent execution using a shared resource with improper synchronization within the Capability Access Management Service (camsvc). This allows an authorized attacker to elevate privileges locally.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

LPE

Race Condition

Use After Free

Weakness Enumeration

CWE-362

CWE-416

Related Identifiers

BDU:2026-00640

CVE-2026-21221

Affected Products

Capability Access Management Service

Windows

References · 8

• https://osv.dev/vulnerability/CVE-2026-21221 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-21221 · Security Note
• https://bdu.fstec.ru/vul/2026-00640 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21221 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2026-21221 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-21221 · Security Note
• https://t.me/msrcreports/2997 · Telegram Post
• https://twitter.com/CVEnew/status/2011181528496422987 · Twitter Post