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.
Affected products
themoos: core-moos
References5
- github.com/themoos/core-moos/blob/ec9c77c68fcbdef8f5e4c60fe243a… Issue TrackingPatch
- github.com/themoos/core-moos/commit/e7ea624a7b7828b47fcd35fc43f… Issue TrackingPatch
- github.com/themoos/core-moos/pull/81 Issue TrackingPatch
- github.com/themoos/core-moos Product
- www.vulncheck.com/advisories/moos-core-moos-through-10.4.0-moos… Third Party Advisory
Metrics
- CVSS 3.1
-
7.5
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 4.0
-
8.7
HIGH
Score source: CNA
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - EPSS — exploit probability
- 1% percentile: 55 · as of 2 November 2026
- CWE
- CWE-789
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