Vulnerability Description
MOOS core-moos through 10.4.0 contains a denial of service vulnerability in MOOSCommServer::ListenLoop() where the accept thread performs a blocking receive without timeout during the wire-protocol handshake. An attacker can open a TCP connection to the MOOSDB port and send no data, causing the accept thread to block indefinitely while holding the socket-list lock, preventing all subsequent client connections.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/themoos/core-moos
- https://github.com/themoos/core-moos/blob/ec9c77c68fcbdef8f5e4c60fe243acd223433f
- https://github.com/themoos/core-moos/commit/8d940303949a850d4625eca2a60f27adee9c
- https://github.com/themoos/core-moos/pull/83
- https://www.vulncheck.com/advisories/moos-core-moos-through-10.4.0-moosdb-accept
FAQ
What is CVE-2026-85443?
CVE-2026-85443 is a vulnerability with a CVSS score of 7.5 (HIGH). MOOS core-moos through 10.4.0 contains a denial of service vulnerability in MOOSCommServer::ListenLoop() where the accept thread performs a blocking receive without timeout during the wire-protocol ha...
How severe is CVE-2026-85443?
CVE-2026-85443 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-85443?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.