CVE-2026-88839: Busybox: busybox: passwd/group parser writes heap pointers out of bounds due to stale tokenize() endpoint

Overview

Severity

Medium (CVSS 6.7)

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Exploit Status

Not Exploited

Patch Tuesday

2026-Sep

Released

2026-10-01

Last Updated

2026-10-01

EPSS Score

0.12% (percentile: 1.8%)

Affected Products (1)

Other

• 21821-17084

Revision History

• 2026-10-01: Information published.
• 2026-10-01: Information published.