CVE-2025-5915
Libarchive: heap buffer over read in copy_from_lzss_window() at archive_read_support_format_rar.c
MEDIUM 6.6EPSS 0.2%
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.
- Affected
- Red Hat · libarchive · Red Hat Enterprise Linux 10 · Red Hat Enterprise Linux 6 · Red Hat Enterprise Linux 7 · Red Hat Enterprise Linux 8 · Red Hat Enterprise Linux 9
- CVSS v3.1 NVD
- 6.6 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:H - EPSS
- 0.20% chance of exploitation in the next 30 days, 9th percentile
- Published
- 2025-06-09
- Updated
- 2026-08-31
Proof-of-concept exploits (1)
- R3n3r0/cve-2025-59150★ · 2026-07-30
Security advisories
- https://access.redhat.com/security/cve/CVE-2025-5915
- libarchive/libarchive/pull/2599
- https://bugzilla.redhat.com/show_bug.cgi?id=2370865