Vulnerability in Jtsylve Lime
CVE-2026-85092
LiME through 1.12.0 fails to validate the disk acquisition output path and does not use O_NOFOLLOW when opening the operator-supplied path parameter, allowing unprivileged local users to overwrite arbitrary root-owned files. An attacker who controls the output directory can create a symbolic link with the expected filename pointing to any root-owned file, and when the acquisition runs in kernel context, LiME follows the link and truncates the target file with the memory acquisition stream.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.6 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H.
EPSS exploit prediction
EPSS: 0.002 (5.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 5.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
Weakness classification (CWE)
References
- gist.github.com/thesmartshadow/5355949144749b431da41490b63598f5 (technical-description, exploit)
- github.com/jtsylve/LiME (product)
- github.com/jtsylve/LiME/blob/v1.12.0/src/disk.c (technical-description)
- www.vulncheck.com/advisories/lime-through-1.12.0-arbitrary-file-overwrite-via-s… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-85092?
- CVE-2026-85092 is a medium-severity vulnerability in Jtsylve Lime, classified under Improper Link Resolution Before File Access. CVSS score: 6.6/10. Published 2026-09-03.
- How severe is CVE-2026-85092?
- Medium severity. CVSS v3 base score is 6.6 out of 10.