CVE-2026-85442CWE-789

CVE-2026-85442

High · published September 4, 2026

CVSS v3.1
7.5
EPSS
1%
Percentile
54.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
8.7 · 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
EPSS
0.00762 · 54.9th percentile
Weakness
CWE-789 · Memory Allocation with Excessive Size Value
Published
2026-09-04T03:17Z
Affected products (1)
ProductVersionsFixed in
themoos/core-moos< 10.4.010.4.0
References (5)
https://github.com/themoos/core-moos · [email protected]https://github.com/themoos/core-moos/blob/ec9c77c68fcbdef8f5e4c60fe243acd223433f0c/Core/libMOOS/Comms/MOOSCommPkt.cpp#L99 · [email protected]https://github.com/themoos/core-moos/commit/e7ea624a7b7828b47fcd35fc43feec1f5cfbbe21 · [email protected]https://github.com/themoos/core-moos/pull/81 · [email protected]https://www.vulncheck.com/advisories/moos-core-moos-through-10.4.0-moosdb-denial-of-service-via-unbounded-packet-allocation · [email protected]
EPSS history
Timeline
  • 05 SEP 03:44Z
    EPSS moved — → 0%
    epss
  • 03 SEP 22:38Z
    MOOS core-moos through 10.4.0 MOOSDB Denial of Service via Unbounded Packet Allocation
    cvelistv5