Vulnerability 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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/themoos/essential-moos
- https://github.com/themoos/essential-moos/blob/b897ea86dba8b61412dc48ac0cfb5ff34
- https://github.com/themoos/essential-moos/commit/613175fcf63fb9c6c5329c4ec57c2d1
- https://github.com/themoos/essential-moos/pull/21
- https://www.vulncheck.com/advisories/moos-essential-moos-through-10.0.1-pmoosbri
FAQ
What is CVE-2026-85436?
CVE-2026-85436 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 negati...
How severe is CVE-2026-85436?
CVE-2026-85436 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-85436?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.