Medium severity · published Jun 9, 2025
CVE-2025-5915
Libarchive: heap buffer over read in copy_from_lzss_window() at archive_read_support_format_rar.c
6.6
CVSS
0.2%
EPSS
No
On KEV
Description
A vulnerability has been identified in the libarchive library. This flaw can lead to a heap buffer over-read due to the size of a filter block potentially exceeding the Lempel-Ziv-Storer-Schieber (LZSS) window. This means the library may attempt to read beyond the allocated memory buffer, which can result in unpredictable program behavior, crashes (denial of service), or the disclosure of sensitive information from adjacent memory regions.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
High
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 9% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RH
Red Hat Enterprise Linux 10 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 6 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 7 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 9 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat OpenShift Container Platform 4 · Red Hat
All versions, or not specified · source: vendor
EL
Enterprise Linux · Redhat
6.0; 7.0; 8.0; 9.0; 10.0 · source: NVD
LI
Libarchive · Libarchive
before 3.8.0 · source: NVD
OC
Openshift Container Platform · Redhat
4.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-5915
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-5915
Vendor Advisory
https://access.redhat.com/security/cve/CVE-2025-5915
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2370865
Patch
https://github.com/libarchive/libarchive/pull/2599
Release Notes
https://github.com/libarchive/libarchive/releases/tag/v3.8.0
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