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Capability Access Management Service (camsvc)

CVE-2026-20851 — Capability Access Management Service (camsvc) Information Disclosure Vulnerability

Important CVSS 6.2 EPSS 0.00566 2026-01 archive

Executive Summary

Out-of-bounds read in Capability Access Management Service (camsvc) allows an unauthorized attacker to disclose information locally.

Overview

6.2
CVSS MEDIUM
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
Category Information Disclosure
Released Jan 13 2026
Last Updated Jan 13 2026
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.00566 — 0.42423 percentile
NVD CVSS 6.2 MEDIUM — matches MSRC

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
ATTACK VECTOR
Local
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
None
USER INTERACTION
None
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
None
AVAILABILITY
None
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 5.4

EPSS Score

0.00566
probability of exploitation in the next 30 days
0.42423 percentile - updated 2026-06-21
View on FIRST.org

Affected Products

6 affected products
Product KB Article Severity Impact Restart Required
Windows 11 Version 24H2 for ARM64-based Systems 5074109 (Security Update) Important Information Disclosure Yes
Windows 11 Version 24H2 for x64-based Systems 5074109 (Security Update) Important Information Disclosure Yes
Windows 11 Version 25H2 for ARM64-based Systems 5074109 (Security Update) Important Information Disclosure Yes
Windows 11 Version 25H2 for x64-based Systems 5074109 (Security Update) Important Information Disclosure Yes
Windows Server 2025 5073379 (Security Update) Important Information Disclosure Yes
Windows Server 2025 (Server Core installation) 5073379 (Security Update) Important Information Disclosure Yes

Patches

2 patches
Article Type Restart
5074109 Security Update Yes
5073379 Security Update Yes

Known Exploits

Acknowledgments

k0shl

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