Integer overflow in Mit Moos-Ivp
CVE-2026-85438
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.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.011 (64.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 64.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.011 · change: +0.006
Affected products
Weakness classification (CWE)
References
- github.com/moos-ivp/moos-ivp (Product, product)
- github.com/moos-ivp/moos-ivp/blob/1de9ae146cd63c209e8c3fd81611a4ed2472971b/ivp/… (technical-description, Patch, Issue Tracking)
- github.com/moos-ivp/moos-ivp/commit/85f4653ff792b30c3ab14dc0eac0991d1405d904 (Patch, patch, Issue Tracking)
- github.com/moos-ivp/moos-ivp/pull/126 (issue-tracking, Patch, patch, Issue Tracking)
- www.vulncheck.com/advisories/moos-ivp-through-24.8.1-out-of-bounds-write-via-un… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-85438?
- CVE-2026-85438 is a critical-severity vulnerability in Mit Moos-Ivp, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2026-09-03.
- How severe is CVE-2026-85438?
- Critical severity. CVSS v3 base score is 9.8 out of 10.