What is CVE-2025-40198?

CVE-2025-40198 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. ext4: avoid potential buffer over-read in parse_apply_sb_mount_options()

Which CVE IDs does CVE-2025-40198 cover?

CVE-2025-40198 covers the following CVE IDs: CVE-2025-40198. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2025-40198?

CVE-2025-40198 has a CVSS v3 base score of 7.8, published by Microsoft Security Response Center (MSRC).

CVE-2025-40198HighCVSS 7.8

ext4: avoid potential buffer over-read in parse_apply_sb_mount_options()

Vendor

Microsoft Security Response Center (MSRC)

Published

May 31, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2025-40198 →