Skip to main content
CVE-2026-43234VulnerabilityPublished Updated

Microsoft · team: avoid NETDEV_CHANGEMTU event when unregistering slave

Affects MicrosoftSource GCVE Database

0
Compare
Authoritative record:CVE-2026-43234· Medium

Not known to be exploited · fixed in dde2fa2a658802d0ff03cd4a0e7d4a5459ef18de : update Microsoft when convenient.

Data as of 30 Oct 2026, 06:59 UTC

Severity
Medium

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

EPSS
0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in dde2fa2a658802d0ff03cd4a0e7d4a5459ef18de, bce42728ac4887060a24a585c5122fbd24939db7, bb4c698633c0e19717586a6524a33196cff01a32 +2

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 29 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 3d249d4ca7d0ed6629a135ea1ea21c72286c0d80, < dde2fa2a658802d0ff03cd4a0e7d4a5459ef18de
Fixed in
  • dde2fa2a658802d0ff03cd4a0e7d4a5459ef18de
LinuxLinuxAffected
  • ≥ 3d249d4ca7d0ed6629a135ea1ea21c72286c0d80, < bce42728ac4887060a24a585c5122fbd24939db7
Fixed in
  • bce42728ac4887060a24a585c5122fbd24939db7
LinuxLinuxAffected
  • ≥ 3d249d4ca7d0ed6629a135ea1ea21c72286c0d80, < bb4c698633c0e19717586a6524a33196cff01a32
Fixed in
  • bb4c698633c0e19717586a6524a33196cff01a32
LinuxLinuxAffected
  • ≥ 3d249d4ca7d0ed6629a135ea1ea21c72286c0d80, < 5268892de70f0b29bde341db863b234aa9259c08
Fixed in
  • 5268892de70f0b29bde341db863b234aa9259c08
LinuxLinuxAffected
  • ≥ 3d249d4ca7d0ed6629a135ea1ea21c72286c0d80, < 1cf0ef73991880dd89aa1feaf547ab13e4767b85
Fixed in
  • 1cf0ef73991880dd89aa1feaf547ab13e4767b85
LinuxLinuxAffected
  • =3.3
Fixed in–

Description

CVE-2026-43234 is a vulnerability related to the handling of the NETDEV_CHANGEMTU event when unregistering a slave in Microsoft software version 3.0. The provided information does not include technical details about the nature of the vulnerability or its impact. No CVSS score or exploit details are available.

References

Community reviews

Loading reviews…