What is CVE-2026-53198?

CVE-2026-53198 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. ksmbd: fix use-after-free of a deferred file_lock on double SMB2_CANCEL

Which CVE IDs does CVE-2026-53198 cover?

CVE-2026-53198 covers the following CVE IDs: CVE-2026-53198. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-53198?

CVE-2026-53198 has a CVSS v3 base score of 7.8, published by Microsoft Security Response Center (MSRC).

CVE-2026-53198HighCVSS 7.8

ksmbd: fix use-after-free of a deferred file_lock on double SMB2_CANCEL

Vendor

Microsoft Security Response Center (MSRC)

Published

June 30, 2026

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2026-53198 →