CVE-2026-85443
MOOS core-moos through 10.4.0 MOOSDB Accept Loop Denial of Service
- State
- Published
- Severity
- 8.7 High
- Published
- Sep 3, 2026
- Updated
- Sep 14, 2026
- Reserved
- Sep 3, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | VulnCheck |
Weaknesses
- CWE-400 Uncontrolled Resource Consumption
Affected Products
| Product | Versions |
|---|---|
core-moosthemoos |
|
References
- Pull Request #83issue-trackingpatch
- Proposed fix commit (pull request not merged)patch
- https://github.com/themoos/core-moosproduct
- MOOSCommServer.cpp (verified sink)technical-description
- VulnCheck Advisory: MOOS core-moos through 10.4.0 MOOSDB Accept Loop Denial of Servicethird-party-advisory
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