CVE-2026-88839

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

CVE-2026-88839 is fixed in busybox on 1 platform, first by SUSE-SU-2026:4760-1, released November 7, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine

CVSS

6.7

Moderate

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0012

2nd percentile

passwd/group parser writes heap pointers out of bounds due to stale tokenize() endpoint (bsc#1282568).

Where it's fixed

Product	Fixed in	Fix	Released
Linux
busybox · opensuse-leap 16.0	1.37.0-160000.8.1	OPENSUSE-SU-2026:22067-1	Nov 7, 2026
busybox · sles 15.7	1.37.0-150700.18.24.1	SUSE-SU-2026:4760-1	Nov 7, 2026
busybox · sles 16.0	1.37.0-160000.8.1	SUSE-SU-2026:24215-1	Nov 7, 2026

Details

Published
October 1, 2026
Weakness
Out-of-bounds Write
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88839

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