CVE-2026-85436
MOOS essential-moos through 10.0.1 pMOOSBridge Heap Corruption via Negative UDP Length
- State
- Published
- Severity
- 8.7 High
- Published
- Sep 3, 2026
- Updated
- Sep 4, 2026
- Reserved
- Sep 3, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | 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 | VulnCheck |
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | VulnCheck |
Weaknesses
- CWE-191 Integer Underflow (Wrap or Wraparound)
Affected Products
| Product | Versions |
|---|---|
essential-moosthemoos |
|
References
- Pull Request #21issue-trackingpatch
- Proposed fix commit (pull request not merged)patch
- https://github.com/themoos/essential-moosproduct
- MOOSUDPLink.cpp (verified sink)technical-description
- VulnCheck Advisory: MOOS essential-moos through 10.0.1 pMOOSBridge Heap Corruption via Negative UDP Lengththird-party-advisory
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