CVE-2026-85436

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 v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/themoos/essential-moos
https://github.com/themoos/essential-moos/blob/b897ea86dba8b61412dc48ac0cfb5ff34cdaf5f6/Essentials/pMOOSBridge/MOOSUDPLink.cpp#L171
https://github.com/themoos/essential-moos/commit/613175fcf63fb9c6c5329c4ec57c2d18588b33e2
https://github.com/themoos/essential-moos/pull/21
https://www.vulncheck.com/advisories/moos-essential-moos-through-10.0.1-pmoosbridge-heap-corruption-via-negative-udp-length

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-03 23:17

Updated : 2026-09-08 20:07

NVD link : CVE-2026-85436

Mitre link : CVE-2026-85436

CVE.ORG link : CVE-2026-85436

JSON object : View

Products Affected

No product.

CWE

CWE-191

Integer Underflow (Wrap or Wraparound)

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