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Vulnerability record · CVE-2026-85428 · published 3 September 2026

CVE-2026-85428: Missing authentication for critical function vulnerability

MOOS core-moos through 10.4.0 contains an authentication bypass vulnerability in the optional MOOSDB HTTP server that allows unauthenticated clients to write variables. Attackers can send HTTP requests with variable names and values to the MOOSDB HTTP server port to modify MOOS variables including actuator and override commands without authentication.

9.3 CVSS 4.0 Critical EPSS 0.82% · top 44.5% CWE-306 · Missing authentication for critical function Awaiting Analysis
9.3CVSS 4.0 base score
0.82%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
5References
14 Sep 2026Last modified by NVD

Description

MOOS core-moos through 10.4.0 contains an authentication bypass vulnerability in the optional MOOSDB HTTP server that allows unauthenticated clients to write variables. Attackers can send HTTP requests with variable names and values to the MOOSDB HTTP server port to modify MOOS variables including actuator and override commands without authentication.

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/themoos/core-moos
https://github.com/themoos/core-moos/blob/ec9c77c68fcbdef8f5e4c60fe243acd223433f0c/Core/libMOOS/DB/HTTPConnection.cpp#L1
https://github.com/themoos/core-moos/commit/7e3aecdbf5fe47980ea9399340c77940991a6fa5
https://github.com/themoos/core-moos/pull/77
https://www.vulncheck.com/advisories/moos-core-moos-through-10.4.0-moosdb-http-server-unauthenticated-variable-write

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Source: NIST National Vulnerability Database (record CVE-2026-85428), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.