MOOS essential-moos through 10.0.1 contains a buffer overflow vulnerability in CMOOSUDPLink::ReadPktFromArray() that allows remote attackers to corrupt heap memory by sending UDP datagrams with negative declared lengths. Attackers can send crafted UDP packets to the configured UDPListen port to trigger an oversized memcpy operation that writes past the destination buffer, causing heap corruption and denial of service.

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Fixes

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Workaround

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History

Fri, 04 Sep 2026 15:45:00 +0000

Type Values Removed Values Added
First Time appeared Themoos
Themoos essential-moos
Vendors & Products Themoos
Themoos essential-moos

Fri, 04 Sep 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


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

Type Values Removed Values Added
Description MOOS essential-moos through 10.0.1 contains a buffer overflow vulnerability in CMOOSUDPLink::ReadPktFromArray() that allows remote attackers to corrupt heap memory by sending UDP datagrams with negative declared lengths. Attackers can send crafted UDP packets to the configured UDPListen port to trigger an oversized memcpy operation that writes past the destination buffer, causing heap corruption and denial of service.
Title MOOS essential-moos through 10.0.1 pMOOSBridge Heap Corruption via Negative UDP Length
Weaknesses CWE-191
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-04T13:40:51.952Z

Reserved: 2026-09-03T19:50:56.238Z

Link: CVE-2026-85436

cve-icon Vulnrichment

Updated: 2026-09-04T13:28:26.260Z

cve-icon NVD

Status : Received

Published: 2026-09-03T23:17:22.937

Modified: 2026-09-04T14:17:22.017

Link: CVE-2026-85436

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-04T15:21:26Z

Weaknesses