CVE-2026-85438

critical

Description

MOOS-IvP through 24.8.1 contains a buffer overflow vulnerability in StringToIvPFunction() where dimension, piece, and degree counts from encoded BHV_IPF payloads are used as allocation sizes and loop bounds without validation. Attackers can supply crafted payloads with mismatched dimension values to write attacker-controlled doubles past the end of the IvPBox weight array, causing memory corruption and potential code execution.

References

https://www.vulncheck.com/advisories/moos-ivp-through-24.8.1-out-of-bounds-write-via-unvalidated-ivp-payload-counts

https://github.com/moos-ivp/moos-ivp/pull/126

https://github.com/moos-ivp/moos-ivp/commit/85f4653ff792b30c3ab14dc0eac0991d1405d904

https://github.com/moos-ivp/moos-ivp/blob/1de9ae146cd63c209e8c3fd81611a4ed2472971b/ivp/src/lib_ivpbuild/FunctionEncoder.cpp#L407

https://github.com/moos-ivp/moos-ivp

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-70802

Details

Source: Mitre, NVD

Published: 2026-09-03

Updated: 2026-10-14

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

CVSS v4

Base Score: 9.3

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Severity: Critical

EPSS

EPSS: 0.01086