Microsoft · team: avoid NETDEV_CHANGEMTU event when unregistering slave
Affects MicrosoftSource GCVE Database
Not known to be exploited · fixed in dde2fa2a658802d0ff03cd4a0e7d4a5459ef18de : update Microsoft when convenient.
Data as of 30 Oct 2026, 06:59 UTC
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
Disclosed: evidence found.
CVE published 6 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| 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.