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CVE-2026-85424

9.8 · CRITICAL

MOOS core-moos through 10.4.0 lacks authentication in the wire protocol, allowing unauthenticated clients to connect with full publish, subscribe, and database clear privileges.

Published Sep 3, 2026themoosCWE-306EPSS 0.81%

Overview

CVE-2026-85424 is a critical-severity vulnerability affecting themoos core-moos. It was published on September 3, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

MOOS core-moos through 10.4.0 lacks authentication in the wire protocol, allowing unauthenticated clients to connect with full publish, subscribe, and database clear privileges. Attackers can bypass the compile-time protocol string check and connect with arbitrary client names to execute privileged operations including DB_CLEAR which resets all variables and clears client mail queues.

Remediation

Check the references section for vendor advisories and patches from themoos. Update core-moos to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
themooscore-moos0Affected

References

GitHubgithub.com/themoos/core-moosGitHubgithub.com/themoos/core-moos/blob/ec9c77c68fcbdef8f5e4c60fe243acd223433f0c/Core/libMOOS/DB/MOOSDB.cpp#L1163GitHubgithub.com/themoos/core-moos/commit/5ff5cdec44242156a168cc1a545a6a21357bd3acGitHubgithub.com/themoos/core-moos/pull/84Refwww.vulncheck.com/advisories/moos-core-moos-through-10.4.0-missing-authentication-for-moosdb-publish-subscribe-and-db-clear

How CyberStrike helps

Frequently asked questions

What is CVE-2026-85424?

CVE-2026-85424 is a critical-severity vulnerability affecting themoos core-moos. It was published on September 3, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2026-85424?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-85424?

Check the references section for vendor advisories and patches from themoos. Update core-moos to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-85424?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-85424 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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