CVE-2026-38754

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-38754
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-15 22:16:47 UTC
Updated2026-07-22 15:16:54 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from ADP

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.001970000 probability, percentile 0.097240000 (date 2026-07-22)

Problem Types: CWE-125 | CWE-122 | CWE-125 CWE-125 Out-of-bounds Read | CWE-122 CWE-122 Heap-based Buffer Overflow

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1[email protected]Secondary5.1MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1CNACVSS5.1MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Busybox Busybox 1.38.0 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA BusyBox BusyBox affected 1.00 1.38.0 custom Not specified

References

ReferenceSourceLinkTags
lists.busybox.net/pipermail/busybox/2026-June/092360.html [email protected] lists.busybox.net
busybox.net [email protected] busybox.net
lists.busybox.net/pipermail/busybox/2026-June/092353.html [email protected] lists.busybox.net Mailing List, Patch, Vendor Advisory
busybox.com MITRE busybox.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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