What is CVE-2026-118384?

CVE-2026-118384 is a security advisory published by Microsoft Security Response Center (MSRC) with Medium severity. GNU mtools through 4.0.49 has an out-of-bounds write in parse_vses in vfat.c.

Which CVE IDs does CVE-2026-118384 cover?

CVE-2026-118384 covers the following CVE IDs: CVE-2026-118384. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-118384?

CVE-2026-118384 has a CVSS v3 base score of 6.1, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-118384?

CVE-2026-118384 affects 1 product, including: azl3 mtools 4.0.43-2 on Azure Linux 3.0.

CVE-2026-118384MediumCVSS 6.1

GNU mtools through 4.0.49 has an out-of-bounds write in parse_vses in vfat.c.

Vendor

Microsoft Security Response Center (MSRC)

Published

October 29, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-118384 →

🎯 Affected products1

azl3 mtools 4.0.43-2 on Azure Linux 3.0

✅ Remediation

KBRelease Notes (Security Update)

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-118384
referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade