CVE-2026-88839

BusyBox passwd/group tokenize() references a stale endpoint pointer after trimming, causing an out-of-bounds write of heap pointers.

  • Published Sep 23, 2026
  • CVSS 6.7 medium
  • 0.1% chance of exploitation in the next 30 days (EPSS)
  • A fix is available

Affected software

CVE-2026-88839 at the National Vulnerability Database