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CVE-2025-15570

ckolivas lrzip stream.c lzma_decompress_buf use after free

CVSS 4.8 MEDIUMEPSS 0.2%CWE-119CWE-416
Vexday Risk Score
13Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 4.8EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
10 Feb 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
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
Affected products
ckolivas · lrzip

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References
https://github.com/ckolivas/lrzip/https://github.com/ckolivas/lrzip/issues/262https://github.com/user-attachments/files/21709004/PoC_UAF.ziphttps://lists.debian.org/debian-lts-announce/2026/05/msg00011.htmlhttps://vuldb.com/?ctiid.344926https://vuldb.com/?id.344926https://vuldb.com/?submit.752595