CVE-2026-4424EPSS p55.6%
CVE-2026-4424CVE-2026-4424
libarchive / libarchive
Description
A flaw was found in libarchive. This heap out-of-bounds read vulnerability exists in the RAR archive processing logic due to improper validation of the LZSS sliding window size after transitions between compression methods. A remote attacker can exploit this by providing a specially crafted RAR archive, leading to the disclosure of sensitive heap memory information without requiring authentication or user interaction.
Scoring
| CVSS | 7.5 () |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| EPSS | 0.88% probability of exploitation · percentile 55.6% · 2026-08-03T12:00:16Z |
| Last modified | 2026-07-15 |
Related by meaning· 6
Nearest entities by semantic similarity across the cs-graph corpus.