CVE-2025-15570

ckolivas lrzip stream.c lzma_decompress_buf use after free

HIGH
7.8
CVSS Score
Published: February 10, 2026 at 01:02 PM UTC
Updated: June 17, 2026 at 08:38 AM UTC
1 product affected across 1 vendorLrzip

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 0.6510.651

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (7)

VDB EntryTechnical DescriptionThird Party Advisory
Source: cverecord
https://vuldb.com/?id.344926
SignaturePermissions RequiredVDB Entry
Source: cverecord
https://vuldb.com/?ctiid.344926
Third Party AdvisoryExploitVDB Entry
Source: cverecord
https://vuldb.com/?submit.752595
Issue TrackingExploit
Source: cverecord
https://github.com/ckolivas/lrzip/issues/262
Product
Source: cverecord
https://github.com/ckolivas/lrzip/
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.debian.org/debian-lts-announce/2026/05/msg00011.html

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-416CWE-119

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