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CVE-2026-74653VulnerabilityPublished Updated

Microsoft · serial: 8250_of: clear stuck empty-FIFO RX-timeout on LPC32xx

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-74653· High

Not known to be exploited · fixed in cc325ce1c40a111824827532ac132afb3d1c342b : patch Microsoft soon.

Data as of 7 Nov 2026, 12:21 UTC

Severity
High

Rated by Threat Radar · CVSS not yet scored by NVD

Patch
Available – fixed in cc325ce1c40a111824827532ac132afb3d1c342b, c321dc5172c8c66e21ffbeeb7a2ebb88ae6fd4c3, 1423415471274abda87024967d7fe2206ceee0ea +2

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 22 Aug 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
  • ≥ e6e912c4964ce5976e508881207dfa96d5f856d7, < cc325ce1c40a111824827532ac132afb3d1c342b
Fixed in
  • cc325ce1c40a111824827532ac132afb3d1c342b
LinuxLinuxAffected
  • ≥ e6e912c4964ce5976e508881207dfa96d5f856d7, < c321dc5172c8c66e21ffbeeb7a2ebb88ae6fd4c3
Fixed in
  • c321dc5172c8c66e21ffbeeb7a2ebb88ae6fd4c3
LinuxLinuxAffected
  • ≥ e6e912c4964ce5976e508881207dfa96d5f856d7, < 1423415471274abda87024967d7fe2206ceee0ea
Fixed in
  • 1423415471274abda87024967d7fe2206ceee0ea
LinuxLinuxAffected
  • ≥ e6e912c4964ce5976e508881207dfa96d5f856d7, < 7795e8abedc86438cae0454602cbf9038b94bf38
Fixed in
  • 7795e8abedc86438cae0454602cbf9038b94bf38
LinuxLinuxAffected
  • ≥ e6e912c4964ce5976e508881207dfa96d5f856d7, < 3ce24bc4d115336218e59b7e286fd3a79f4fc4c6
Fixed in
  • 3ce24bc4d115336218e59b7e286fd3a79f4fc4c6
LinuxLinuxAffected
  • =2.6.36
Fixed in–

Description

CVE-2026-74653 is a published vulnerability related to the serial 8250 driver handling on LPC32xx platforms, specifically concerning clearing a stuck empty-FIFO RX-timeout condition. The information provided is minimal and does not include technical details, impact, or exploit status.

References

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