Description
A heap overflow in the ifsbreakup() function (shell/ash.c) of Busybox v1.38.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted input.
Published: 2026-07-15
Score: 5.1 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Wed, 22 Jul 2026 08:00:00 +0000

Type Values Removed Values Added
Title Heap Overflow in BusyBox ash Shell Causing Denial of Service

Mon, 20 Jul 2026 16:15:00 +0000

Type Values Removed Values Added
References

Mon, 20 Jul 2026 14:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-125
CPEs cpe:2.3:a:busybox:busybox:*:*:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV3_1

{'score': 5.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L'}


Fri, 17 Jul 2026 06:15:00 +0000

Type Values Removed Values Added
Title Heap Overflow in BusyBox ash Shell Causing Denial of Service

Thu, 16 Jul 2026 16:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-122
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 16 Jul 2026 01:30:00 +0000

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

Wed, 15 Jul 2026 21:30:00 +0000

Type Values Removed Values Added
Description A heap overflow in the ifsbreakup() function (shell/ash.c) of Busybox v1.38.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted input.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-07-20T15:27:22.161Z

Reserved: 2026-04-06T00:00:00.000Z

Link: CVE-2026-38754

cve-icon Vulnrichment

Updated: 2026-07-16T15:20:59.767Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-22T07:45:16Z

Weaknesses