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Vulnerabilities

Vulnerability · CVE-2026-85443

MOOS core-moos through 10.4.0 MOOSDB Accept Loop Denial of Service

Published Sep 3, 2026 · catalog updated Oct 14, 2026 · MOOS core-moos through 10.4.0

Check if you run it

No confirmed exploitation is on record for CVE-2026-85443. EPSS is 0.63%. Act only if a listed version of MOOS core-moos through 10.4.0 is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (MOOS core-moos through 10.4.0).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High8.7
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.63%
Remediation
Advisory link
Affected products
cpe themoos/core-moos · vendor themoos core-moos

MOOS core-moos through 10.4.0 contains a denial of service vulnerability in MOOSCommServer::ListenLoop() where the accept thread performs a blocking receive without timeout during the wire-protocol handshake. An attacker can open a TCP connection to the MOOSDB port and send no data, causing the accept thread to block indefinitely while holding the socket-list lock, preventing all subsequent client connections.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe themoos/core-moosversion unspecified
  • vendor themoos core-moosversion unspecified

How to fix CVE-2026-85443

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-85443. EPSS is 0.63%. Act only if a listed version of MOOS core-moos through 10.4.0 is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-400: Uncontrolled Resource Consumption. EPSS 0.63%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 3, 2026 · NIST NVD

    Detected

    MOOS core-moos through 10.4.0 contains a denial of service vulnerability in MOOSCommServer::ListenLoop() where the accept thread performs a blocking receive without timeout during the wire-protocol handshake. An attacker can open a TCP connection to the MOOSDB port and send no data, causing the accept thread to block indefinitely while holding the socket-list lock, preventing all subsequent client

  2. Oct 14, 2026 · NIST NVD

    Updated

    MOOS core-moos through 10.4.0 contains a denial of service vulnerability in MOOSCommServer::ListenLoop() where the accept thread performs a blocking receive without timeout during the wire-protocol handshake. An attacker can open a TCP connection to the MOOSDB port and send no data, causing the accept thread to block indefinitely while holding the socket-list lock, preventing all subsequent client

Sources

  • CIRCL Vulnerability LookupVulnerability recordCVE-2026-85443

    MOOS core-moos through 10.4.0 contains a denial of service vulnerability in MOOSCommServer::ListenLoop() where the accept thread performs a blocking receive without timeout during the wire-protocol handshake. An attacker can open a TCP connection to the MOOSDB port and send no da

    vulnerability.circl.lu
  • CVE.orgVulnerability recordCVE-2026-85443

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-85443

    30-day exploitation probability 0.6%

    first.org
  • NIST NVDVulnerability recordCVE-2026-85443

    MOOS core-moos through 10.4.0 contains a denial of service vulnerability in MOOSCommServer::ListenLoop() where the accept thread performs a blocking receive without timeout during the wire-protocol handshake. An attacker can open a TCP connection to the MOOSDB port and send no da

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.