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CVE-2026-99080VulnerabilityPublished Updated

clear_inode() · fs: Free any excess xarray nodes

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-99080· Low

Not known to be exploited · fixed in f1c966eb6ed5e190c90a56c5bdaa69967de39f21 : update Microsoft when convenient.

Data as of 7 Nov 2026, 12:18 UTC

Severity
Low

Rated by Threat Radar · CVSS not yet scored by NVD

Thin evidence

One scorer or none
Patch
Available – fixed in f1c966eb6ed5e190c90a56c5bdaa69967de39f21, ee3f011250104129893d8e9599147e457d4d7280, 04456642e33022cc53562a91393a09d492124b44 +5

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 23 Oct 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 7 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 77da9389b9d5f07d54fda092d1ab56002ec0019a, < f1c966eb6ed5e190c90a56c5bdaa69967de39f21
Fixed in
  • f1c966eb6ed5e190c90a56c5bdaa69967de39f21
LinuxLinuxAffected
  • ≥ 77da9389b9d5f07d54fda092d1ab56002ec0019a, < ee3f011250104129893d8e9599147e457d4d7280
Fixed in
  • ee3f011250104129893d8e9599147e457d4d7280
LinuxLinuxAffected
  • ≥ 77da9389b9d5f07d54fda092d1ab56002ec0019a, < 04456642e33022cc53562a91393a09d492124b44
Fixed in
  • 04456642e33022cc53562a91393a09d492124b44
LinuxLinuxAffected
  • ≥ 77da9389b9d5f07d54fda092d1ab56002ec0019a, < 813779d7974e51a6950c7237708853b129d564e1
Fixed in
  • 813779d7974e51a6950c7237708853b129d564e1
LinuxLinuxAffected
  • ≥ 77da9389b9d5f07d54fda092d1ab56002ec0019a, < 50cff3f112d64db6e5f57355f79bc837db8fe132
Fixed in
  • 50cff3f112d64db6e5f57355f79bc837db8fe132
LinuxLinuxAffected
  • ≥ 77da9389b9d5f07d54fda092d1ab56002ec0019a, < 43f830e2bb84b22ca824b20bb861d823ecb520bd
Fixed in
  • 43f830e2bb84b22ca824b20bb861d823ecb520bd

Description

To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

References

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