CVE-2025-15570
ckolivas lrzip stream.c lzma_decompress_buf use after free
- State
- Published
- Severity
- 4.8 Medium
- Published
- Feb 10, 2026
- Updated
- May 6, 2026
- Reserved
- Feb 8, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 4.8 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 5.3 Medium | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 3.0 | 5.3 Medium | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 4.3 Medium | AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
lrzipckolivas |
|
References
- VDB-344926 | ckolivas lrzip stream.c lzma_decompress_buf use after freevdb-entrytechnical-description
- VDB-344926 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- Submit #752595 | ckolivas lrzip 0.651 Memory Corruptionthird-party-advisory
- https://github.com/ckolivas/lrzip/issues/262issue-tracking
- https://github.com/user-attachments/files/21709004/PoC_UAF.zipexploit
- https://github.com/ckolivas/lrzip/product
- https://lists.debian.org/debian-lts-announce/2026/05/msg00011.html
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.