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.
Published: 2026-09-03
Score: 9.3 Critical
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

The vulnerability allows any network client to connect to the MOOS database service without authentication, granting full publish, subscribe, and DB_CLEAR permissions; a malicious actor can reset all variables and clear email queues, effectively compromising the integrity and availability of the system.

Affected Systems

The flaw affects The MOOS core‑moos version 10.4.0 and earlier; the issue resides in the MOOSDB wire protocol implementation within the core‑moos code base.

Risk and Exploitability

With a CVSS score of 9.3 the exploit offers a high severity risk; although EPSS data is not available, the absence of KEV listing does not negate the possibility of active exploitation. The likely attack vector is a remote network connection to the MOOSDB service, where an unauthenticated client can assume any client identity by bypassing the compile‑time protocol string check.

Generated by OpenCVE AI on September 3, 2026 at 23:31 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Apply the latest core‑moos release or the patch in commit 5ff5cdec0 which restores authentication enforcement in MOOSDB.
  • Configure firewall rules to limit access to the MOOSDB port so only trusted hosts can connect, thereby reducing the opportunity for unauthenticated exploitation.
  • Ensure the MOOS database configuration requires a valid shared secret/ authentication string before permitting privileged operations such as DB_CLEAR.

Generated by OpenCVE AI on September 3, 2026 at 23:31 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Thu, 03 Sep 2026 22:45:00 +0000

Type Values Removed Values Added
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.
Title MOOS core-moos through 10.4.0 Missing Authentication for MOOSDB Publish, Subscribe and DB_CLEAR
Weaknesses CWE-306
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': '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'}


Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-03T22:38:20.333Z

Reserved: 2026-09-03T19:50:44.220Z

Link: CVE-2026-85424

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-03T23:17:21.170

Modified: 2026-09-03T23:17:21.170

Link: CVE-2026-85424

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-03T23:45:04Z

Weaknesses
  • CWE-306

    Missing Authentication for Critical Function