CVE-2026-38754

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.

CVSS v3 5.1 MEDIUM

5.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.5 / Impact : 2.5

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://busybox.net
https://lists.busybox.net/pipermail/busybox/2026-June/092353.html	Mailing List Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:busybox:busybox:1.38.0:*:*:*:*:*:*:*

History

20 Jul 2026, 16:16

Type	Values Removed	Values Added
References	~~{'url': 'https://busybox.com', 'tags': ['Product'], 'source': 'cve@mitre.org'}~~	() https://busybox.net -

20 Jul 2026, 15:16

Type	Values Removed	Values Added
CWE		CWE-125
References	~~() https://lists.busybox.net/pipermail/busybox/2026-June/092353.html - Mailing List, Vendor Advisory, Patch~~	() https://lists.busybox.net/pipermail/busybox/2026-June/092353.html - Mailing List, Patch, Vendor Advisory
CVSS	v2 : ~~unknown~~ v3 : ~~7.5~~	v2 : unknown v3 : 5.1

16 Jul 2026, 19:57

Type	Values Removed	Values Added
References	~~() https://busybox.com -~~	() https://busybox.com - Product
References	~~() https://lists.busybox.net/pipermail/busybox/2026-June/092353.html -~~	() https://lists.busybox.net/pipermail/busybox/2026-June/092353.html - Mailing List, Vendor Advisory, Patch
CPE		cpe:2.3:a:busybox:busybox:1.38.0:::::::*
First Time		Busybox Busybox busybox

16 Jul 2026, 16:19

Type	Values Removed	Values Added
CWE		CWE-122
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5

15 Jul 2026, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-15 22:16

Updated : 2026-07-20 16:16

NVD link : CVE-2026-38754

Mitre link : CVE-2026-38754

CVE.ORG link : CVE-2026-38754

JSON object : View

Products Affected

busybox

busybox

CWE

CWE-125

Out-of-bounds Read

CWE-122

Heap-based Buffer Overflow

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