PatchSiren

bzip2 CVE debriefs

These pages are published after PatchSiren validates generated defensive summaries against stored public CVE and source evidence.

MEDIUM bzip2 CVE published 2026-05-28

CVE-2026-42250

A medium-severity off-by-one vulnerability in bzip2's bzip2recover utility permits out-of-bounds writes to a global buffer when processing malformed input files. This memory corruption results in denial of service through application crash. The flaw is local in attack vector with low attack complexity, requiring no privileges or user interaction. No evidence of known exploitation or ransomware campaign us [truncated]