CVE-2025-15570 MEDIUM

CVE-2025-15570: ckolivas lrzip stream.c lzma_decompress_buf use after free

Vendor Ckolivas
Product lrzip
Weakness CWE-416
Published February 10, 2026
Last update May 6, 2026

CVSS base score

4.8/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

February 10, 2026 CVE published
May 6, 2026 Record updated