What is CVE-2026-85428?

CVE-2026-85428 is a critical-severity vulnerability, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2026-09-03.

How severe is CVE-2026-85428?

Critical severity. CVSS v3 base score is 9.8 out of 10.

CVE-2026-85428

CVE-2026-85428

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.

Vulnerability class: Broken Authentication

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

disclosure@vulncheck.com
disclosure@vulncheck.com
disclosure@vulncheck.com
disclosure@vulncheck.com
disclosure@vulncheck.com

Frequently asked questions

What is CVE-2026-85428?: CVE-2026-85428 is a critical-severity vulnerability, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2026-09-03.
How severe is CVE-2026-85428?: Critical severity. CVSS v3 base score is 9.8 out of 10.