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CVE-2026-90023VulnerabilityPublished Updated

Microsoft · usb: gadget: f_mass_storage: fix null pointer dereference in fsg_common_set_num_buffers()

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-90023· Medium

Not known to be exploited · fixed in f4f0fe3ab47ed57ee4974fdd3e9dccb7839a7ebf : update Microsoft when convenient.

Data as of 7 Nov 2026, 12:19 UTC

Severity
Medium

Rated by Threat Radar · CVSS not yet scored by NVD

Thin evidence

One scorer or none
Patch
Available – fixed in f4f0fe3ab47ed57ee4974fdd3e9dccb7839a7ebf, e54820b9dc1d6d731ecc3e51462445dc952906a7, b9b5b5df5b8dd3c1572ed267200276a44cc67d8e +5

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 16 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
  • ≥ fe5a6c48fd954489f51aab151d5dad9254c76419, < f4f0fe3ab47ed57ee4974fdd3e9dccb7839a7ebf
Fixed in
  • f4f0fe3ab47ed57ee4974fdd3e9dccb7839a7ebf
LinuxLinuxAffected
  • ≥ fe5a6c48fd954489f51aab151d5dad9254c76419, < e54820b9dc1d6d731ecc3e51462445dc952906a7
Fixed in
  • e54820b9dc1d6d731ecc3e51462445dc952906a7
LinuxLinuxAffected
  • ≥ fe5a6c48fd954489f51aab151d5dad9254c76419, < b9b5b5df5b8dd3c1572ed267200276a44cc67d8e
Fixed in
  • b9b5b5df5b8dd3c1572ed267200276a44cc67d8e
LinuxLinuxAffected
  • ≥ fe5a6c48fd954489f51aab151d5dad9254c76419, < 51cc9af4f2d3f0b765266aced66b9b532b423b13
Fixed in
  • 51cc9af4f2d3f0b765266aced66b9b532b423b13
LinuxLinuxAffected
  • ≥ fe5a6c48fd954489f51aab151d5dad9254c76419, < 38edd187a37db0d8e4bf84cc954dbdbe7bfa366f
Fixed in
  • 38edd187a37db0d8e4bf84cc954dbdbe7bfa366f
LinuxLinuxAffected
  • ≥ fe5a6c48fd954489f51aab151d5dad9254c76419, < 9e8dd2a7a8ccbb756771ad985b0ad3387ed3c957
Fixed in
  • 9e8dd2a7a8ccbb756771ad985b0ad3387ed3c957

Description

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

References

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