CVE-2026-85431

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-04. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2%CVSS: 7.5Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

MOOS essential-moos through version 10.0.1 contains an unauthenticated UDP packet injection vulnerability in pMOOSBridge when configured with UDPListen. Attackers can send crafted UDP packets to the configured port to inject arbitrary variables into the local MOOS community with spoofed source and community identifiers.

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
50(Track)
EG Risk 50/100SSVC: 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 computed
Severity75% × 45%
Exploitation2% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
2%
EPSS %ILE
79%
KEV
Not listed

Published

September 3, 2026

Last Modified

September 8, 2026

Advisory Details (5)

Auto-updated Sep 3, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit, github_pr.
generic

MOOS essential-moos through 10.0.1 pMOOSBridge Unauthenticated UDP Packet Injection | Advisories | VulnCheck

https://www.vulncheck.com/advisories/moos-essential-moos-through-10.0.1-pmoosbridge-unauthenticated-udp-packet-injection
generic

essential-moos/Essentials/pMOOSBridge/MOOSUDPLink.cpp at b897ea86dba8b61412dc48ac0cfb5ff34cdaf5f6 · themoos/essential-moos · GitHub

https://github.com/themoos/essential-moos/blob/b897ea86dba8b61412dc48ac0cfb5ff34cdaf5f6/Essentials/pMOOSBridge/MOOSUDPLink.cpp#L21
generic

GitHub - themoos/essential-moos: a set of useful applications that leverage the core-moos communications layer · GitHub

https://github.com/themoos/essential-moos
github_commit

commit d8441eac57d0 (themoos/essential-moos)

Fix landed in themoos/essential-moos commit d8441eac57d0 — awaiting tagged release

https://github.com/themoos/essential-moos/commit/d8441eac57d04ee89e7b82723480d10a558b45d6
github_pr

pMOOSBridge: allow incoming UDP to be restricted to known peers

Upstream fix in progress (PR #19 · themoos/essential-moos, state=open)

https://github.com/themoos/essential-moos/pull/19

Vendor Advisories for CVE-2026-85431(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 / 63× 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.

  1. 2026-09-19 15:09 UTCGHSA enrichment
  2. 2026-09-19 02:54 UTCEG score recompute
  3. 2026-09-19 02:53 UTCGHSA enrichment
  4. 2026-09-18 19:28 UTCEPSS rescore
  5. 2026-09-18 14:43 UTCGHSA enrichment
  6. 2026-09-18 02:31 UTCEG score recompute
  7. 2026-09-18 02:31 UTCGHSA enrichment
  8. 2026-09-17 19:32 UTCEPSS rescore
  9. 2026-09-17 14:20 UTCGHSA enrichment
  10. 2026-09-17 02:09 UTCEG score recompute
  11. 2026-09-17 02:09 UTCGHSA enrichment
  12. 2026-09-16 14:09 UTCEPSS rescore
  13. 2026-09-16 13:58 UTCEG score recompute
  14. 2026-09-16 13:58 UTCGHSA enrichment
  15. 2026-09-16 05:15 UTCEPSS rescore
  16. 2026-09-16 01:45 UTCGHSA enrichment
  17. 2026-09-15 13:34 UTCEG score recompute
  18. 2026-09-15 13:34 UTCGHSA enrichment
  19. 2026-09-15 03:12 UTCEPSS rescore
  20. 2026-09-15 03:12 UTCEPSS rescore
  21. 2026-09-15 01:22 UTCGHSA enrichment
  22. 2026-09-14 13:11 UTCGHSA enrichment
  23. 2026-09-14 01:00 UTCEG score recompute
  24. 2026-09-14 01:00 UTCGHSA enrichment
  25. 2026-09-13 12:49 UTCGHSA enrichment
Show 38 more
  1. 2026-09-13 00:37 UTCEG score recompute
  2. 2026-09-13 00:37 UTCGHSA enrichment
  3. 2026-09-12 12:25 UTCGHSA enrichment
  4. 2026-09-12 00:14 UTCEG score recompute
  5. 2026-09-12 00:14 UTCGHSA enrichment
  6. 2026-09-11 14:53 UTCEPSS rescore
  7. 2026-09-11 14:53 UTCEPSS rescore
  8. 2026-09-11 12:03 UTCEG score recompute
  9. 2026-09-11 12:02 UTCGHSA enrichment
  10. 2026-09-10 23:51 UTCGHSA enrichment
  11. 2026-09-10 11:37 UTCEG score recompute
  12. 2026-09-10 11:37 UTCGHSA enrichment
  13. 2026-09-09 23:26 UTCGHSA enrichment
  14. 2026-09-09 08:32 UTCEG score recompute
  15. 2026-09-09 08:32 UTCGHSA enrichment
  16. 2026-09-08 22:01 UTCEPSS rescore
  17. 2026-09-08 20:20 UTCGHSA enrichment
  18. 2026-09-08 03:45 UTCEG score recompute
  19. 2026-09-08 03:45 UTCGHSA enrichment
  20. 2026-09-07 15:33 UTCGHSA enrichment
  21. 2026-09-07 03:22 UTCGHSA enrichment
  22. 2026-09-06 15:07 UTCEG score recompute
  23. 2026-09-06 15:07 UTCGHSA enrichment
  24. 2026-09-06 13:48 UTCEPSS rescore
  25. 2026-09-06 02:55 UTCEG score recompute
  26. 2026-09-06 02:55 UTCGHSA enrichment
  27. 2026-09-05 15:31 UTCEPSS rescore
  28. 2026-09-05 14:44 UTCGHSA enrichment
  29. 2026-09-05 02:31 UTCGHSA enrichment
  30. 2026-09-04 14:19 UTCEG score recompute
  31. 2026-09-04 14:19 UTCGHSA enrichment
  32. 2026-09-04 13:45 UTCEG score recompute
  33. 2026-09-04 13:45 UTCGHSA enrichment
  34. 2026-09-04 11:42 UTCEG score recompute
  35. 2026-09-04 11:42 UTCGHSA enrichment
  36. 2026-09-03 23:30 UTCEG score recompute
  37. 2026-09-03 22:44 UTCEG score recompute
  38. 2026-09-03 22:43 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-85431?
CVE-2026-85431 is a high vulnerability published on September 3, 2026. MOOS essential-moos through version 10.0.1 contains an unauthenticated UDP packet injection vulnerability in pMOOSBridge when configured with UDPListen. Attackers can send crafted UDP packets to the configured port to inject arbitrary variables into the local MOOS community with spoofed source and…
When was CVE-2026-85431 disclosed?
CVE-2026-85431 was first published in the National Vulnerability Database on September 3, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-85431 actively exploited?
CVE-2026-85431 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2% probability of exploitation in the next 30 days, which ranks it in the top 21.2% of all scored CVEs.
What is the CVSS score of CVE-2026-85431?
CVE-2026-85431 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-85431?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-85431, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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