MOOS core-moos through 10.4.0 contains a remote process termination vulnerability in the SuicidalSleeper component that uses a hard-coded passphrase for multicast command authorization. Any multicast-reachable peer can enumerate MOOS processes and send termination commands to trigger process shutdown by exploiting the default multicast group and port with the known passphrase.
CVE-2026-85451
Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-09-04. a secondary CVSS source baseline 7.1; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.1
- EG Score
- 7.1(high)
- EG Risk
- 32(Track)EG Risk 32/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity71% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 13%
- KEV
- Not listed
Published
September 3, 2026
Last Modified
September 8, 2026
Advisory Details (5)
Auto-updated Sep 3, 2026MOOS core-moos through 10.4.0 Remote Process Termination via Hard-Coded Multicast Passphrase | Advisories | VulnCheck
https://www.vulncheck.com/advisories/moos-core-moos-through-10.4.0-remote-process-termination-via-hard-coded-multicast-passphrasecore-moos/Core/libMOOS/Comms/SuicidalSleeper.cpp at ec9c77c68fcbdef8f5e4c60fe243acd223433f0c · themoos/core-moos · GitHub
https://github.com/themoos/core-moos/blob/ec9c77c68fcbdef8f5e4c60fe243acd223433f0c/Core/libMOOS/Comms/SuicidalSleeper.cpp#L45GitHub - themoos/core-moos: A very light weight, easy to use middleware. You will need core-moos above all other components · GitHub
https://github.com/themoos/core-mooscommit 488806a07db9 (themoos/core-moos)
Fix landed in themoos/core-moos commit 488806a07db9 — awaiting tagged release
https://github.com/themoos/core-moos/commit/488806a07db9f21eea124f48a9c0392f058f01dcDo not listen for suicide instructions without a configured phrase
Upstream fix in progress (PR #85 · themoos/core-moos, state=open)
https://github.com/themoos/core-moos/pull/85Vendor Advisories for CVE-2026-85451(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 27× in last 7d / 66× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-09-20 20:16 UTCEPSS rescore
- 2026-09-20 17:20 UTCGHSA enrichment
- 2026-09-20 05:04 UTCGHSA enrichment
- 2026-09-19 16:48 UTCEG score recompute
- 2026-09-19 16:48 UTCGHSA enrichment
- 2026-09-19 04:32 UTCEG score recompute
- 2026-09-19 04:32 UTCGHSA enrichment
- 2026-09-18 19:28 UTCEPSS rescore
- 2026-09-18 16:17 UTCGHSA enrichment
- 2026-09-18 03:46 UTCEG score recompute
- 2026-09-18 03:46 UTCGHSA enrichment
- 2026-09-17 19:32 UTCEPSS rescore
- 2026-09-17 15:30 UTCGHSA enrichment
- 2026-09-17 03:13 UTCGHSA enrichment
- 2026-09-16 14:57 UTCEG score recompute
- 2026-09-16 14:57 UTCGHSA enrichment
- 2026-09-16 14:09 UTCEPSS rescore
- 2026-09-16 05:15 UTCEPSS rescore
- 2026-09-16 02:41 UTCGHSA enrichment
- 2026-09-15 14:25 UTCEG score recompute
- 2026-09-15 14:25 UTCGHSA enrichment
- 2026-09-15 03:12 UTCEPSS rescore
- 2026-09-15 03:12 UTCEPSS rescore
- 2026-09-15 02:09 UTCGHSA enrichment
- 2026-09-14 13:49 UTCGHSA enrichment
Show 41 moreShow fewer
- 2026-09-14 01:33 UTCEG score recompute
- 2026-09-14 01:33 UTCGHSA enrichment
- 2026-09-13 13:18 UTCGHSA enrichment
- 2026-09-13 01:02 UTCEG score recompute
- 2026-09-13 01:02 UTCGHSA enrichment
- 2026-09-12 12:46 UTCGHSA enrichment
- 2026-09-12 00:30 UTCEG score recompute
- 2026-09-12 00:30 UTCGHSA enrichment
- 2026-09-11 14:53 UTCEPSS rescore
- 2026-09-11 14:53 UTCEPSS rescore
- 2026-09-11 12:14 UTCEG score recompute
- 2026-09-11 12:14 UTCGHSA enrichment
- 2026-09-10 23:57 UTCGHSA enrichment
- 2026-09-10 11:41 UTCEG score recompute
- 2026-09-10 11:41 UTCGHSA enrichment
- 2026-09-09 23:25 UTCGHSA enrichment
- 2026-09-09 08:35 UTCEG score recompute
- 2026-09-09 08:35 UTCGHSA enrichment
- 2026-09-08 22:01 UTCEPSS rescore
- 2026-09-08 20:19 UTCGHSA enrichment
- 2026-09-08 04:17 UTCEG score recompute
- 2026-09-08 04:17 UTCGHSA enrichment
- 2026-09-07 16:01 UTCGHSA enrichment
- 2026-09-07 03:44 UTCGHSA enrichment
- 2026-09-06 15:28 UTCEG score recompute
- 2026-09-06 15:28 UTCGHSA enrichment
- 2026-09-06 13:48 UTCEPSS rescore
- 2026-09-06 03:12 UTCEG score recompute
- 2026-09-06 03:12 UTCGHSA enrichment
- 2026-09-05 15:31 UTCEPSS rescore
- 2026-09-05 14:54 UTCGHSA enrichment
- 2026-09-05 02:38 UTCGHSA enrichment
- 2026-09-04 14:19 UTCEG score recompute
- 2026-09-04 14:19 UTCGHSA enrichment
- 2026-09-04 13:45 UTCEG score recompute
- 2026-09-04 13:44 UTCGHSA enrichment
- 2026-09-04 11:43 UTCEG score recompute
- 2026-09-04 11:43 UTCGHSA enrichment
- 2026-09-03 23:27 UTCEG score recompute
- 2026-09-03 22:44 UTCEG score recompute
- 2026-09-03 22:43 UTCMITRE cvelistV5first tracked
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Frequently asked(5)
What is CVE-2026-85451?
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What is the CVSS score of CVE-2026-85451?
How do I remediate CVE-2026-85451?
Dependency Blast Radius
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