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CVE-2025-5915

Libarchive: heap buffer over read in copy_from_lzss_window() at archive_read_support_format_rar.c

CVSS 6.6 MEDIUMEPSS 0.2%CWE-122
Vexday Risk Score
13Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 6.6EPSS 0.2%KEV nãoPoC Nuclei Metasploit Patch
Lifecycle
09 Jun 2025Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:H