Microsoft · macsec: initialize SecY before registering the netdevice
Affects MicrosoftSource GCVE Database
Not known to be exploited · fixed in c2de369c5c5b8599ca10fd5ca8d11fcd845c1331 : update Microsoft when convenient.
Data as of 28 Oct 2026, 08:57 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- Patch
- Available – fixed in c2de369c5c5b8599ca10fd5ca8d11fcd845c1331, b07bea42bf590edb0fd507ab25622a74af09548b, 2b42adf3b8ee9a0e1d2629aca3c5a02a1c438066
Exploitation evidence
Disclosed: evidence found.
CVE published 23 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 Oct 2026.
What to do
Upgrade Linux to c2de369c5c5b8599ca10fd5ca8d11fcd845c1331, b07bea42bf590edb0fd507ab25622a74af09548b or 2b42adf3b8ee9a0e1d2629aca3c5a02a1c438066.
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– |
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.