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CVE-2026-98929VulnerabilityPublished Updated

Microsoft · macsec: initialize SecY before registering the netdevice

Affects MicrosoftSource GCVE Database

0
Authoritative record:CVE-2026-98929· Low

Not known to be exploited · fixed in c2de369c5c5b8599ca10fd5ca8d11fcd845c1331 : update Microsoft when convenient.

Data as of 28 Oct 2026, 08:57 UTC

Severity
Low

Rated by Threat Radar · CVSS not yet scored by NVD

Patch
Available – fixed in c2de369c5c5b8599ca10fd5ca8d11fcd845c1331, b07bea42bf590edb0fd507ab25622a74af09548b, 2b42adf3b8ee9a0e1d2629aca3c5a02a1c438066

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 23 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: 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 26 Oct 2026.

What to do

Upgrade Linux to c2de369c5c5b8599ca10fd5ca8d11fcd845c1331, b07bea42bf590edb0fd507ab25622a74af09548b or 2b42adf3b8ee9a0e1d2629aca3c5a02a1c438066.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ c09440f7dcb304002dfced8c0fea289eb25f2da0, < c2de369c5c5b8599ca10fd5ca8d11fcd845c1331
Fixed in
  • c2de369c5c5b8599ca10fd5ca8d11fcd845c1331
LinuxLinuxAffected
  • ≥ c09440f7dcb304002dfced8c0fea289eb25f2da0, < b07bea42bf590edb0fd507ab25622a74af09548b
Fixed in
  • b07bea42bf590edb0fd507ab25622a74af09548b
LinuxLinuxAffected
  • ≥ c09440f7dcb304002dfced8c0fea289eb25f2da0, < 2b42adf3b8ee9a0e1d2629aca3c5a02a1c438066
Fixed in
  • 2b42adf3b8ee9a0e1d2629aca3c5a02a1c438066
LinuxLinuxAffected
  • =4.6
Fixed in–

Description

This vulnerability involves the macsec component where the SecY is not initialized before registering the network device. The issue affects Microsoft products versions 3.0 and 4.0. No CVSS score or detailed impact information is provided.

References

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