CVE-2026-88832

Busybox: busybox: romfs volume id parsing performs unbounded memcpy into fixed-size label buffer, causing heap overflow

CVE-2026-88832 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

6.1

Moderate

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0013

2nd percentile

romfs volume ID parsing uses unbounded `strlen` on attacker-controlled metadata and allows for a heap

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-2026-88832

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