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VulnerabilityPublished Updated

CVE-2026-90200: Linux kernel · fs/ntfs3: fix integer overflow in MFT cluster validation

Source GCVE Database

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Authoritative record:CVE-2026-90200· Medium

Not known to be exploited · fixed in f77a8d9fdf58e298b36564a44c27fadc617bdd28 : update Linux kernel when convenient.

Data as of 30 Oct 2026, 19:03 UTC

Severity
Medium

Rated Medium by Threat Radar's AI analysis · CVSS not yet scored by NVD

Thin evidence

One scorer or none
Patch
Available – fixed in f77a8d9fdf58e298b36564a44c27fadc617bdd28, dc6d85de7e2656e56e10ff5ba514f2583a4f612b, c510c63873103a5da6a498fe537bdb5d6f8d03a2 +3

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 17 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 82cae269cfa953032fbb8980a7d554d60fb00b17, < f77a8d9fdf58e298b36564a44c27fadc617bdd28
Fixed in
  • f77a8d9fdf58e298b36564a44c27fadc617bdd28
LinuxLinuxAffected
  • ≥ 82cae269cfa953032fbb8980a7d554d60fb00b17, < dc6d85de7e2656e56e10ff5ba514f2583a4f612b
Fixed in
  • dc6d85de7e2656e56e10ff5ba514f2583a4f612b
LinuxLinuxAffected
  • ≥ 82cae269cfa953032fbb8980a7d554d60fb00b17, < c510c63873103a5da6a498fe537bdb5d6f8d03a2
Fixed in
  • c510c63873103a5da6a498fe537bdb5d6f8d03a2
LinuxLinuxAffected
  • ≥ 82cae269cfa953032fbb8980a7d554d60fb00b17, < 169383d8914b8fe03464a83540b5b6de3e7831af
Fixed in
  • 169383d8914b8fe03464a83540b5b6de3e7831af
LinuxLinuxAffected
  • ≥ 82cae269cfa953032fbb8980a7d554d60fb00b17, < 805cc5554b13d045dce9b03c13eaf015418739fd
Fixed in
  • 805cc5554b13d045dce9b03c13eaf015418739fd
LinuxLinuxAffected
  • ≥ 82cae269cfa953032fbb8980a7d554d60fb00b17, < 8ecb1525a9520acd3d5ea3e2593e487fd9f143ce
Fixed in
  • 8ecb1525a9520acd3d5ea3e2593e487fd9f143ce

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A fix is available that adds proper overflow checks during MFT cluster validation in the ntfs3 driver. Users should apply the official Linux kernel update that includes this fix. No additional mitigation is required as the issue is resolved by the patch.

Description

A vulnerability in the Linux kernel's ntfs3 filesystem driver involves an integer overflow during Master File Table (MFT) cluster validation. The flaw allows malformed MFT cluster numbers to bypass validation due to multiplication overflow, potentially causing mount failures. The issue has been fixed by adding proper overflow checks during validation.

References

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