CVE-2026-85092
LiME through 1.12.0 Arbitrary File Overwrite via Symlink Following
- State
- Published
- Severity
- 5.2 Medium
- Published
- Sep 3, 2026
- Updated
- Sep 3, 2026
- Reserved
- Sep 2, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.2 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 6.6 Medium | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H | VulnCheck |
Weaknesses
- CWE-59 Improper Link Resolution Before File Access ('Link Following')
Affected Products
| Product | Versions |
|---|---|
LiMEjtsylve |
|
References
- Technical report and proof of concepttechnical-descriptionexploit
- https://github.com/jtsylve/LiME/blob/v1.12.0/src/disk.c#L63technical-description
- https://github.com/jtsylve/LiMEproduct
- VulnCheck Advisory: LiME through 1.12.0 Arbitrary File Overwrite via Symlink Followingthird-party-advisory
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