Description
BusyBox romfs volume ID parsing uses unbounded strlen on attacker-controlled metadata, causing a heap buffer overflow when processing crafted filesystem images.
Published: 2026-09-23
Score: 7.3 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

Vendor Workaround

Avoid processing untrusted filesystem images with BusyBox blkid or findfs. Use the util-linux versions of these utilities instead (default on Fedora).

Tracking

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Advisories

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History

Thu, 24 Sep 2026 09:45:00 +0000

Type Values Removed Values Added
First Time appeared Busybox
Busybox busybox
Redhat hardened Images
Vendors & Products Busybox
Busybox busybox
Redhat hardened Images

Thu, 24 Sep 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Important


Wed, 23 Sep 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 23 Sep 2026 17:15:00 +0000

Type Values Removed Values Added
Description BusyBox romfs volume ID parsing uses unbounded strlen on attacker-controlled metadata, causing a heap buffer overflow when processing crafted filesystem images.
Title Busybox: busybox: romfs volume id parsing performs unbounded memcpy into fixed-size label buffer, causing heap overflow
First Time appeared Redhat
Redhat hummingbird
Weaknesses CWE-787
CPEs cpe:/a:redhat:hummingbird:1
Vendors & Products Redhat
Redhat hummingbird
References
Metrics cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H'}


Subscriptions

Busybox Busybox
Redhat Hardened Images Hummingbird
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-09-24T03:55:44.024Z

Reserved: 2026-09-10T09:42:04.559Z

Link: CVE-2026-88832

cve-icon Vulnrichment

Updated: 2026-09-23T17:41:05.487Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-23T17:17:18.573

Modified: 2026-09-24T04:18:03.670

Link: CVE-2026-88832

cve-icon Redhat

Severity : Important

Publid Date: 2026-09-23T16:35:00Z

Links: CVE-2026-88832 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-09-24T09:10:38Z

Weaknesses