Vulnerability in Themoos Essential-Moos
CVE-2026-85431
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.034 (88.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 88.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.019 · newest: 0.034 · change: +0.015
Affected products
Weakness classification (CWE)
References
- github.com/themoos/essential-moos (Product, product)
- github.com/themoos/essential-moos/blob/b897ea86dba8b61412dc48ac0cfb5ff34cdaf5f6… (Product, technical-description, Issue Tracking)
- github.com/themoos/essential-moos/commit/d8441eac57d04ee89e7b82723480d10a558b45… (Patch, patch, Issue Tracking)
- github.com/themoos/essential-moos/pull/19 (issue-tracking, Exploit, Patch, patch, Issue Tracking)
- www.vulncheck.com/advisories/moos-essential-moos-through-10.0.1-pmoosbridge-una… (VDB Entry, Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-85431?
- CVE-2026-85431 is a high-severity vulnerability in Themoos Essential-Moos, classified under Insufficient Verification of Data Authenticity. CVSS score: 7.5/10. Published 2026-09-03.
- How severe is CVE-2026-85431?
- High severity. CVSS v3 base score is 7.5 out of 10.