CVE-2026-85442
MOOS core-moos through 10.4.0 MOOSDB Denial of Service via Unbounded Packet Allocation
- State
- Published
- Severity
- 8.7 High
- Published
- Sep 3, 2026
- Updated
- Sep 4, 2026
- Reserved
- Sep 3, 2026
Description
MOOS core-moos through 10.4.0 fails to validate packet length declarations in CMOOSCommPkt::OnBytesWritten(), allowing unauthenticated attackers to trigger unbounded buffer allocation by sending crafted wire packets. Attackers can send packets with large declared lengths to exhaust server memory and cause denial of service before client authentication completes.
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-789 Memory Allocation with Excessive Size Value
Affected Products
| Product | Versions |
|---|---|
core-moosthemoos |
|
References
- Pull Request #81issue-trackingpatch
- Proposed fix commit (pull request not merged)patch
- https://github.com/themoos/core-moosproduct
- MOOSCommPkt.cpp (verified sink)technical-description
- VulnCheck Advisory: MOOS core-moos through 10.4.0 MOOSDB Denial of Service via Unbounded Packet Allocationthird-party-advisory
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