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CVE-2026-90150VulnerabilityPublished Updated

Microsoft · pnfs/blocklayout: Fix device leaks on parse failure

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-90150· Low

Not known to be exploited · fixed in c056f817e4200fb18079d5052c273a22f191ff0a : 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 c056f817e4200fb18079d5052c273a22f191ff0a, 710ae187a5d490a894054d17645cf5c83d37dfbf, 51d162dfb618f6cf3aa5e331c0305e27771ad884 +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 7 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 5c83746a0cf2831d4b59f5cf99ef5fbf138564e4, < c056f817e4200fb18079d5052c273a22f191ff0a
Fixed in
  • c056f817e4200fb18079d5052c273a22f191ff0a
LinuxLinuxAffected
  • ≥ 5c83746a0cf2831d4b59f5cf99ef5fbf138564e4, < 710ae187a5d490a894054d17645cf5c83d37dfbf
Fixed in
  • 710ae187a5d490a894054d17645cf5c83d37dfbf
LinuxLinuxAffected
  • ≥ 5c83746a0cf2831d4b59f5cf99ef5fbf138564e4, < 51d162dfb618f6cf3aa5e331c0305e27771ad884
Fixed in
  • 51d162dfb618f6cf3aa5e331c0305e27771ad884
LinuxLinuxAffected
  • ≥ 5c83746a0cf2831d4b59f5cf99ef5fbf138564e4, < 23e4162405c456ce12c772d5882d306135e828ae
Fixed in
  • 23e4162405c456ce12c772d5882d306135e828ae
LinuxLinuxAffected
  • ≥ 5c83746a0cf2831d4b59f5cf99ef5fbf138564e4, < 8a2494964edac2a13e82441c2bf887548dc3be0b
Fixed in
  • 8a2494964edac2a13e82441c2bf887548dc3be0b
LinuxLinuxAffected
  • ≥ 5c83746a0cf2831d4b59f5cf99ef5fbf138564e4, < 1e1c36b206c659cf94c6755a1d821ed1babd32bc
Fixed in
  • 1e1c36b206c659cf94c6755a1d821ed1babd32bc

Description

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

References

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