CVE-2025-15570

MEDIUM 5.3

ckolivas lrzip stream.c lzma_decompress_buf use after free

CVSS Score

5.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-416 CWE-119
Vendor	ckolivas
Product	lrzip
Published	Feb 10, 2026
Last Updated	Feb 23, 2026

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CVSS v3 Breakdown

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

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

ckolivas / lrzip

0.651

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/?id.344926 vuldb.com: https://vuldb.com/?ctiid.344926 vuldb.com: https://vuldb.com/?submit.752595 github.com: https://github.com/ckolivas/lrzip/issues/262 github.com: https://github.com/user-attachments/files/21709004/PoC_UAF.zip github.com: https://github.com/ckolivas/lrzip/

Credits

🔍 ziiiro (VulDB User)