What is CVE-2026-53390?

CVE-2026-53390 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. ksmbd: fix out-of-bounds read in smb_check_perm_dacl()

Which CVE IDs does CVE-2026-53390 cover?

CVE-2026-53390 covers the following CVE IDs: CVE-2026-53390. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-53390?

CVE-2026-53390 has a CVSS v3 base score of 7.1, published by Microsoft Security Response Center (MSRC).

CVE-2026-53390HighCVSS 7.1

ksmbd: fix out-of-bounds read in smb_check_perm_dacl()

Vendor

Microsoft Security Response Center (MSRC)

Published

July 23, 2026

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2026-53390 →