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CVE-2026-98846VulnerabilityPublished Updated

Microsoft · sctp: check RCV_SHUTDOWN after the sendmsg connect wait

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-98846· High

Not known to be exploited · fixed in fe5a23c76fc48b711eb7d6f3462c994e34da36f9 : patch Microsoft soon.

Data as of 7 Nov 2026, 12:35 UTC

Severity
High

Rated by Threat Radar · CVSS not yet scored by NVD

Thin evidence

One scorer or none
Patch
Available – fixed in fe5a23c76fc48b711eb7d6f3462c994e34da36f9, e701345d886e831fb593a0870d69c8c5de6fc938, e8f972b1759d26bbefe4c524caae1ed7c8a593bd +5

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 18 Oct 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
  • ≥ 668c9beb9020d5834ee9e43c208190a07d2b1928, < fe5a23c76fc48b711eb7d6f3462c994e34da36f9
Fixed in
  • fe5a23c76fc48b711eb7d6f3462c994e34da36f9
LinuxLinuxAffected
  • ≥ 668c9beb9020d5834ee9e43c208190a07d2b1928, < e701345d886e831fb593a0870d69c8c5de6fc938
Fixed in
  • e701345d886e831fb593a0870d69c8c5de6fc938
LinuxLinuxAffected
  • ≥ 668c9beb9020d5834ee9e43c208190a07d2b1928, < e8f972b1759d26bbefe4c524caae1ed7c8a593bd
Fixed in
  • e8f972b1759d26bbefe4c524caae1ed7c8a593bd
LinuxLinuxAffected
  • ≥ 668c9beb9020d5834ee9e43c208190a07d2b1928, < 222c41e0f50f1d5028be9baf0e1dcfc0bfa7f669
Fixed in
  • 222c41e0f50f1d5028be9baf0e1dcfc0bfa7f669
LinuxLinuxAffected
  • ≥ 668c9beb9020d5834ee9e43c208190a07d2b1928, < 7f798168c54455559da0f7a377a23ab7019fec35
Fixed in
  • 7f798168c54455559da0f7a377a23ab7019fec35
LinuxLinuxAffected
  • ≥ 668c9beb9020d5834ee9e43c208190a07d2b1928, < 4f1da630d13de0370e2f6361f961f1c8b384af1c
Fixed in
  • 4f1da630d13de0370e2f6361f961f1c8b384af1c

Description

CVE-2026-98846 is a vulnerability related to the SCTP protocol implementation in Microsoft products, specifically affecting versions 3.0 and 4.0. The description references checking RCV_SHUTDOWN after the sendmsg connect wait, but no further technical details or impact information are provided.

References

Community reviews

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