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CVE-2026-99026VulnerabilityPublished Updated

Microsoft · net: team: free skb when broadcast has no txable port

Affects MicrosoftSource GCVE Database

0
Authoritative record:CVE-2026-99026· Medium

Not known to be exploited · fixed in f34b1bcac4581a5bd3daf9eff90f175e736b54aa : update Microsoft when convenient.

Data as of 28 Oct 2026, 08:45 UTC

Severity
Medium

Rated by Threat Radar · CVSS not yet scored by NVD

Patch
Available – fixed in f34b1bcac4581a5bd3daf9eff90f175e736b54aa, 961563117626f4681623077ec0cfd86f86da0d49, 489114c9ecae44e523361a4b3e610ee5ebd9189c

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 f34b1bcac4581a5bd3daf9eff90f175e736b54aa, 961563117626f4681623077ec0cfd86f86da0d49 or 489114c9ecae44e523361a4b3e610ee5ebd9189c.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 5fc889911a99043a97da1daa0d010ad72cbc3042, < f34b1bcac4581a5bd3daf9eff90f175e736b54aa
Fixed in
  • f34b1bcac4581a5bd3daf9eff90f175e736b54aa
LinuxLinuxAffected
  • ≥ 5fc889911a99043a97da1daa0d010ad72cbc3042, < 961563117626f4681623077ec0cfd86f86da0d49
Fixed in
  • 961563117626f4681623077ec0cfd86f86da0d49
LinuxLinuxAffected
  • ≥ 5fc889911a99043a97da1daa0d010ad72cbc3042, < 489114c9ecae44e523361a4b3e610ee5ebd9189c
Fixed in
  • 489114c9ecae44e523361a4b3e610ee5ebd9189c
LinuxLinuxAffected
  • =3.6
Fixed in–

Description

This vulnerability, identified as CVE-2026-99026, involves the network team component in Microsoft software versions 3.0 and 4.0. The issue relates to freeing socket buffers (skb) when a broadcast has no transmit-capable port. No CVSS score or detailed impact information is provided.

References

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