Buffer overflow in Ckolivas Lrzip
CVE-2025-15570
A vulnerability was found in ckolivas lrzip up to 0.651. This impacts the function lzma_decompress_buf of the file stream.c. Performing a manipulation results in use after free. Attacking locally is a requirement. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.002 (10.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 10th percentile — 10.0% 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
- Ckolivas Lrzip — versions 0.651
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/ (Exploit, VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/ckolivas/lrzip/issues/262 (issue-tracking, Exploit, Issue Tracking)
- github.com/user-attachments/files/21709004/PoC_UAF.zip (Exploit, exploit)
- github.com/ckolivas/lrzip/ (Product, product)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2025-15570?
- CVE-2025-15570 is a medium-severity vulnerability in Ckolivas Lrzip, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.3/10. Published 2026-02-10.
- How severe is CVE-2025-15570?
- Medium severity. CVSS v3 base score is 5.3 out of 10.