Skip to main content
CVE-2026-97567VulnerabilityPublished Updated

Microsoft · mptcp: prevent race between disconnect() and rtx

Affects MicrosoftSource GCVE Database

0
Compare
Authoritative record:CVE-2026-97567· Medium

Not known to be exploited · fixed in 2261f857ef4e0d21eb1a8b47b06640cf7ab16d3e : update Microsoft when convenient.

Data as of 7 Nov 2026, 12:35 UTC

Severity
Medium

Rated by Threat Radar · CVSS not yet scored by NVD

Thin evidence

One scorer or none
Patch
Available – fixed in 2261f857ef4e0d21eb1a8b47b06640cf7ab16d3e, 374da2b9be1280695ce41f108334a8f16e3e54be, 85c580b0d8590520ae00a15c29e9fb9c99427a3e +3

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 25 Sep 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 7 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ b29fcfb54cd70caca5b11c80d8d238854938884a, < 2261f857ef4e0d21eb1a8b47b06640cf7ab16d3e
Fixed in
  • 2261f857ef4e0d21eb1a8b47b06640cf7ab16d3e
LinuxLinuxAffected
  • ≥ b29fcfb54cd70caca5b11c80d8d238854938884a, < 374da2b9be1280695ce41f108334a8f16e3e54be
Fixed in
  • 374da2b9be1280695ce41f108334a8f16e3e54be
LinuxLinuxAffected
  • ≥ b29fcfb54cd70caca5b11c80d8d238854938884a, < 85c580b0d8590520ae00a15c29e9fb9c99427a3e
Fixed in
  • 85c580b0d8590520ae00a15c29e9fb9c99427a3e
LinuxLinuxAffected
  • ≥ b29fcfb54cd70caca5b11c80d8d238854938884a, < 75b3b30ae4ee6aa0572595f6b48544ed4f479eb6
Fixed in
  • 75b3b30ae4ee6aa0572595f6b48544ed4f479eb6
LinuxLinuxAffected
  • ≥ b29fcfb54cd70caca5b11c80d8d238854938884a, < 69a7b2a912672159dda7dcf325d27752d448dfdf
Fixed in
  • 69a7b2a912672159dda7dcf325d27752d448dfdf
LinuxLinuxAffected
  • ≥ b29fcfb54cd70caca5b11c80d8d238854938884a, < 1a68a88369c0ab6309bd17f7e408290c5cb80dcf
Fixed in
  • 1a68a88369c0ab6309bd17f7e408290c5cb80dcf

Description

This vulnerability concerns a race condition in the Multipath TCP (mptcp) implementation related to the disconnect() and retransmission (rtx) functions. It affects Microsoft products with versions 3.0 and 4.0. No detailed impact or exploitation information is provided.

References

Community reviews

Loading reviews…