CVE record · CVE-2026-90200

fs/ntfs3: fix integer overflow in MFT cluster validation

No CVSS scoreEPSS 0.0022 · 13th percentile

Published by the CVE Program (CNA: Linux) at 17 Sept 2026, 16:07 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Linux	Linux	affected 82cae269cfa953032fbb8980a7d554d60fb00b17 to before 8ecb1525a9520acd3d5ea3e2593e487fd9f143ce git affected 82cae269cfa953032fbb8980a7d554d60fb00b17 to before f77a8d9fdf58e298b36564a44c27fadc617bdd28 git affected 82cae269cfa953032fbb8980a7d554d60fb00b17 to before 805cc5554b13d045dce9b03c13eaf015418739fd git affected 82cae269cfa953032fbb8980a7d554d60fb00b17 to before dc6d85de7e2656e56e10ff5ba514f2583a4f612b git affected 82cae269cfa953032fbb8980a7d554d60fb00b17 to before 169383d8914b8fe03464a83540b5b6de3e7831af git affected 82cae269cfa953032fbb8980a7d554d60fb00b17 to before c510c63873103a5da6a498fe537bdb5d6f8d03a2 git Other versions: unaffected
Linux	Linux	affected 5.15 unaffected before 5.15 semver unaffected 6.1.191 to 6.1., inclusive semver unaffected 6.6.157 to 6.6., inclusive semver unaffected 6.12.110 to 6.12., inclusive semver unaffected 6.18.52 to 6.18., inclusive semver unaffected 7.2.6 to 7.2., inclusive semver unaffected 7.3 to , inclusive original_commit_for_fix Other versions: affected

Identifiers: CVE-2026-90200
CNA: Linux
Tags: Linux kernel
Published: 17 Sept 2026
Updated: 30 Oct 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

CVE-2026-90200 affects the Linux kernel's fs/ntfs3 driver, which mounts NTFS volumes. A integer overflow in the MFT cluster number check during boot-sector validation could let a malformed boot sector pass validation. The source describes the practical effect as mount failures rather than a more serious outcome. Affected kernels are listed by commit ranges and by version; upgrade to a fixed stable release from the affected branch.

Written 12 Nov 2026.

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

No source has published a CVSS score for this record yet.

CISA KEV Not listed.
EPSS 0.0022, the 13th percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 17 Sept 2026. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.