CVE-2026-69919: Windows Cryptographic Services Information Disclosure Vulnerability

Published Oct 13, 2026
·
Updated

Out-of-bounds read in Windows Cryptographic Services allows an authorized attacker to disclose information locally.

Other sources

Windows Cryptographic Services Information Disclosure Vulnerability

— Microsoft

Affected Software

10 affected componentsFixes available
Microsoft Windows 11=24H2
10.0.26100.9711
Microsoft Windows Server 2025<10.0.26100.33650
10.0.26100.33650
Microsoft Windows 11=24H2
10.0.26100.9711
Microsoft Windows 11=26H1
10.0.28000.3231
Microsoft Windows 11=26H1
10.0.28000.3231
Microsoft Windows 11=25H2
10.0.26200.9711
Microsoft Windows 11=26H2
10.0.26300.9711
Microsoft Windows Server 2025<10.0.26100.33650
10.0.26100.33650
Microsoft Windows 11=25H2
10.0.26200.9711
Microsoft Windows 11=26H2
10.0.26300.9711

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.26100.9711Patch KB5127648
  2. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.28000.3231Patch KB5127646
  3. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.26100.33650Patch KB5126646
  4. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.26200.9711Patch KB5127648
  5. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.26300.9711Patch KB5127648

Event History

Oct 13, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
CVE Published
via MITRE·07:01 PM
Data Sourced
via MITRE·07:01 PM
DescriptionSeverity
Data Sourced
via NVD·07:19 PM
DescriptionSeverityWeakness

Frequently Asked Questions

1

Who is exposed to this issue?

Systems running Microsoft Windows 11 or Microsoft Windows Server 2025 are identified as affected. Exploitation requires local access and authorization on the target system.

2

What level of access does an attacker need?

An attacker must already have low-privileged access locally. No user interaction is required for exploitation.

Contact

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