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CVE-2026-98553VulnerabilityPublished Updated

autofs_kill_sb() · autofs: fix sbi->pipe file reference leak

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-98553· Low

Not known to be exploited · fixed in fc4fd0281ac80b5a3c5a2330f688f0f9d2a420b6 : update Microsoft when convenient.

Data as of 2 Nov 2026, 10:58 UTC

Severity
Low

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS
0.2% chance of exploitation in 30 days – higher than 12% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in fc4fd0281ac80b5a3c5a2330f688f0f9d2a420b6, f1c57f5b16bbc3571bd479c290996c4d4e1fb931, aa5e44b29ffe4eaa08cc2237fd65bc2596bc023e +5

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 18 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 2 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7, < fc4fd0281ac80b5a3c5a2330f688f0f9d2a420b6
Fixed in
  • fc4fd0281ac80b5a3c5a2330f688f0f9d2a420b6
LinuxLinuxAffected
  • ≥ ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7, < f1c57f5b16bbc3571bd479c290996c4d4e1fb931
Fixed in
  • f1c57f5b16bbc3571bd479c290996c4d4e1fb931
LinuxLinuxAffected
  • ≥ ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7, < aa5e44b29ffe4eaa08cc2237fd65bc2596bc023e
Fixed in
  • aa5e44b29ffe4eaa08cc2237fd65bc2596bc023e
LinuxLinuxAffected
  • ≥ ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7, < a58593b501b7be5ad2bc5181bfa8cd4599be257c
Fixed in
  • a58593b501b7be5ad2bc5181bfa8cd4599be257c
LinuxLinuxAffected
  • ≥ ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7, < 3684e2273ba94553af3c5195a46a50214a1a96e3
Fixed in
  • 3684e2273ba94553af3c5195a46a50214a1a96e3
LinuxLinuxAffected
  • ≥ ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7, < 0662b1ff9b383d5a233d344e4dc518c27a17f7b8
Fixed in
  • 0662b1ff9b383d5a233d344e4dc518c27a17f7b8

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

Description

A vulnerability identified as CVE-2026-98553 affects Microsoft products version 3.0 and 4.0 related to autofs, specifically a file reference leak in the autofs_kill_sb() function. No detailed impact or exploitation information is provided.

References

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