Security Advisory

CVE-2026-85440

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-09-03 22:38:31

Last updated 2026-09-04 17:22:12

Assigner VulnCheck

CVSS score 9.8

State PUBLISHED

Description

MOOS core-moos through 10.4.0 contains a pre-authentication heap overflow vulnerability in MOOSCommPkt packet handling that allows remote attackers to write arbitrary data by declaring a negative packet length. Attackers can exploit the signed integer check in InflateTo() and negative size conversion in recv() to overflow a four-byte heap buffer during the HandShake phase before authentication.

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