CVE-2026-85424: critical vulnerability in themoos core-moos
MOOS core-moos through 10.4.0 Missing Authentication for MOOSDB Publish, Subscribe and DB_CLEAR
Published · Updated
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28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.3epss 0.8%
MOOS core-moos through 10.4.0 lacks authentication in the wire protocol, allowing unauthenticated clients to connect with full publish, subscribe, and database clear privileges. Attackers can bypass the compile-time protocol string check and connect with arbitrary client names to execute privileged operations including DB_CLEAR which resets all variables and clears client mail queues.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
themoos · core-moosRelated CVEs — themoos core-moos
In the same product, most dangerous first.
CVE-2026-85440CRITICALMOOS core-moos through 10.4.0 MOOSDB Pre-Authentication Heap Overflow via Negative Packet LengthEPSS 1.0%CVE-2026-85428CRITICALMOOS core-moos through 10.4.0 MOOSDB HTTP Server Unauthenticated Variable WriteEPSS 0.8%CVE-2026-85442HIGHMOOS core-moos through 10.4.0 MOOSDB Denial of Service via Unbounded Packet AllocationEPSS 0.8%CVE-2026-85455HIGHMOOS core-moos through 10.4.0 MOOSDB Out-of-Bounds Read via Short PacketEPSS 0.7%CVE-2026-85441HIGHMOOS core-moos through 10.4.0 MOOSDB Denial of Service via Negative Serialized String LengthEPSS 0.7%CVE-2026-85450HIGHMOOS core-moos through 10.4.0 MOOSDB HTTP Server Resource ExhaustionEPSS 0.6%
References
https://github.com/themoos/core-mooshttps://github.com/themoos/core-moos/blob/ec9c77c68fcbdef8f5e4c60fe243acd223433f0c/Core/libMOOS/DB/MOOSDB.cpp#L1163https://github.com/themoos/core-moos/commit/5ff5cdec44242156a168cc1a545a6a21357bd3achttps://github.com/themoos/core-moos/pull/84https://www.vulncheck.com/advisories/moos-core-moos-through-10.4.0-missing-authentication-for-moosdb-publish-subscribe-and-db-clear