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.
Fix
Patch, vendor advisory and mitigation references on NVD 3
- https://github.com/themoos/core-moos/blob/ec9c77c68fcbdef8f5e4c60fe243acd223433f0c/Core/libMOOS/Comms/MOOSCommServer.cpp#L922 Issue Tracking, Patch
- https://github.com/themoos/core-moos/commit/8d940303949a850d4625eca2a60f27adee9c3ec4 Issue Tracking, Patch
- https://github.com/themoos/core-moos/pull/83 Issue Tracking, Patch
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 8.7 · themoosNVD modified 2026-10-14 23:30
Affected (CPE criteria) 1
cpe:2.3:a:themoos:core-moos:*:*:*:*:*:*:*:*
References 5
- https://github.com/themoos/core-moos Product
- https://github.com/themoos/core-moos/blob/ec9c77c68fcbdef8f5e4c60fe243acd223433f0c/Core/libMOOS/Comms/MOOSCommServer.cpp#L922 Issue Tracking, Patch
- https://github.com/themoos/core-moos/commit/8d940303949a850d4625eca2a60f27adee9c3ec4 Issue Tracking, Patch
- https://github.com/themoos/core-moos/pull/83 Issue Tracking, Patch
- https://www.vulncheck.com/advisories/moos-core-moos-through-10.4.0-moosdb-accept-loop-denial-of-service Third Party Advisory