CVE-2026-85443
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.
- Published Sep 3, 2026
- CVSS 8.7 high
- 0.6% chance of exploitation in the next 30 days (EPSS)
- A fix is available