What is CVE-2026-68873?

CVE-2026-68873 is a medium-severity vulnerability in Microsoft Windows 11 Version 23h2, classified under Insertion of Sensitive Information into Log File. CVSS score: 5.5/10. Published 2026-09-08.

How severe is CVE-2026-68873?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Information disclosure in Microsoft Windows 11 Version 23h2

CVE-2026-68873

Insertion of sensitive information into log file in Windows Program Compatibility Assistant Service allows an authorized attacker to disclose information locally.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Microsoft Windows 11 Version 23h2
Microsoft Windows 11 Version 24h2
Microsoft Windows 11 Version 25h2
Microsoft Windows 11 Version 26h1
Microsoft Windows Server 2025
Microsoft Windows Server 2025 (Server Core Installation)

Weakness classification (CWE)

CWE-532 — Insertion of Sensitive Information into Log File
CWE-908 — Use of Uninitialized Resource

References

secure@microsoft.com (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-68873?: CVE-2026-68873 is a medium-severity vulnerability in Microsoft Windows 11 Version 23h2, classified under Insertion of Sensitive Information into Log File. CVSS score: 5.5/10. Published 2026-09-08.
How severe is CVE-2026-68873?: Medium severity. CVSS v3 base score is 5.5 out of 10.