Path Traversal in Mit Moos-Ivp
CVE-2026-85456
MOOS-IvP through 24.8.1 fails to properly validate variable names extracted from alog files in the SplitHandler, allowing attackers to write files outside the split directory. Attackers can supply crafted alog files with backslash sequences in variable names to escape the output directory and append to arbitrary files on Windows systems.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.002 (12.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 13th percentile — 12.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.001
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/6f0619e905b325d6b88f76425673045c6e4f6f94 (Patch, patch, Issue Tracking)
- github.com/moos-ivp/moos-ivp/pull/137 (issue-tracking, Patch, patch, Issue Tracking)
- www.vulncheck.com/advisories/moos-ivp-through-24.8.1-alog-splitting-path-traver… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-85456?
- CVE-2026-85456 is a medium-severity vulnerability in Mit Moos-Ivp, classified under Path Traversal. CVSS score: 5.5/10. Published 2026-09-03.
- How severe is CVE-2026-85456?
- Medium severity. CVSS v3 base score is 5.5 out of 10.