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CVE-2026-43250VulnerabilityPublished Updated

Microsoft · usb: chipidea: udc: fix DMA and SG cleanup in _ep_nuke()

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-43250· High

Not known to be exploited · fixed in f4fbf2d4750d12ac8525d2efac1016fa0d84d4ec : patch Microsoft soon.

Data as of 9 Nov 2026, 23:24 UTC

Severity
High

Rated by Threat Radar · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none
EPSS
0.1% chance of exploitation in 30 days – higher than 5% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in f4fbf2d4750d12ac8525d2efac1016fa0d84d4ec, e74c436f8568af1c60942469d0a2300b3ada3857, cea2a1257a3b5ea3e769a445b34af13e6aa5a123 +3

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 May 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 10 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ aa69a8093ff985873cb44fe1157bd6db29a20fe4, < f4fbf2d4750d12ac8525d2efac1016fa0d84d4ec
Fixed in
  • f4fbf2d4750d12ac8525d2efac1016fa0d84d4ec
LinuxLinuxAffected
  • ≥ aa69a8093ff985873cb44fe1157bd6db29a20fe4, < e74c436f8568af1c60942469d0a2300b3ada3857
Fixed in
  • e74c436f8568af1c60942469d0a2300b3ada3857
LinuxLinuxAffected
  • ≥ aa69a8093ff985873cb44fe1157bd6db29a20fe4, < cea2a1257a3b5ea3e769a445b34af13e6aa5a123
Fixed in
  • cea2a1257a3b5ea3e769a445b34af13e6aa5a123
LinuxLinuxAffected
  • ≥ aa69a8093ff985873cb44fe1157bd6db29a20fe4, < aad97c92119cb85db105ddda4a44c86cc0748e8c
Fixed in
  • aad97c92119cb85db105ddda4a44c86cc0748e8c
LinuxLinuxAffected
  • ≥ aa69a8093ff985873cb44fe1157bd6db29a20fe4, < 1497998749600411d75e60a44f7e572b2348bd9a
Fixed in
  • 1497998749600411d75e60a44f7e572b2348bd9a
LinuxLinuxAffected
  • ≥ aa69a8093ff985873cb44fe1157bd6db29a20fe4, < 1b72b834511d17f4d069d512f78671f3f210a2f1
Fixed in
  • 1b72b834511d17f4d069d512f78671f3f210a2f1

Description

CVE-2026-43250 is a vulnerability related to USB chipidea UDC driver handling, specifically addressing DMA and scatter-gather cleanup in the _ep_nuke() function. The vulnerability affects version 3.0 of the Microsoft product. No CVSS score or detailed technical impact is provided.

References

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