CVE-2026-38753

MediumCVSS 4.9/10Last modified Jul 20, 2026

Description

A use-after-free in the awk_sub() function (editors/awk.c) of Busybox v1.38.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted AWK script.

Metrics

CVSS 3.1 4.9/10CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Weakness enumeration

CWE-416

Affected software

Vendor	Product	Versions
BusyBox	BusyBox	>= 1.00, <= 1.38.0

References

https://busybox.net
https://lists.busybox.net/pipermail/busybox/2026-June/092352.htmlMailing List, Patch, Vendor Advisory

Timeline

Published: Jul 15, 2026
Last modified: Jul 20, 2026
NVD status: Modified

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