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.
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 31 Jul 2026 04:45:00 +0000

Type Values Removed Values Added
Title Heap Overflow in BusyBox Ash Shell Causes Denial of Service

Wed, 29 Jul 2026 03:30:00 +0000

Type Values Removed Values Added
Title Heap Buffer Overflow in BusyBox ash Shell Leading to Denial of Service

Sat, 25 Jul 2026 08:15:00 +0000

Type Values Removed Values Added
Title Heap Buffer Overflow in BusyBox ash Shell Leading to Denial of Service

Wed, 22 Jul 2026 15:00:00 +0000

Type Values Removed Values Added
References

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

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-07-22T14:42:57.143Z

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

Link: CVE-2026-38754

cve-icon Vulnrichment

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

cve-icon NVD

Status : Modified

Published: 2026-07-15T22:16:47.233

Modified: 2026-07-22T15:16:54.520

Link: CVE-2026-38754

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-31T04:30:03Z

Weaknesses