# 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.

- Web page: https://patchblox.com/security/cve/CVE-2026-88832
- Priority: Routine
- CVSS: 6.1 (Moderate)
- EPSS: 0.0013
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Oct 1, 2026
- Weakness: Out-of-bounds Write
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88832

## Description

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

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | busybox opensuse-leap 16.0 | 1.37.0-160000.8.1 | [OPENSUSE-SU-2026:22067-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-22067-1.md) | Nov 7, 2026 |
| Linux | busybox sles 15.7 | 1.37.0-150700.18.24.1 | [SUSE-SU-2026:4760-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4760-1.md) | Nov 7, 2026 |
| Linux | busybox sles 16.0 | 1.37.0-160000.8.1 | [SUSE-SU-2026:24215-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-24215-1.md) | Nov 7, 2026 |

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Data as of 2026-11-12T07:53:35Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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