CVE-2026-85442

High

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.

SeverityHigh

CVSS7.5

Exploit probability—

ProductThemoos Core-moos

PublishedSep 3, 2026

First seenSep 3, 2026

Weakness typeCWE-789CWE-789

How to fix

Update

themoos core-moos10.4.0 or later

Patches

github.com/themoos/core-moos/pull/81
github.com/themoos/core-moos/commit/e7ea624a7b7828b47fcd35fc43feec1f5cfbbe21

Affected products

Product	Affected versions	Fixed in
themoos core-moos	v < 10.4.0	10.4.0

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.