CVE-2026-38754

high

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

https://lists.busybox.net/pipermail/busybox/2026-June/092360.html

https://lists.busybox.net/pipermail/busybox/2026-June/092353.html

https://busybox.net

Details

Source: Mitre, NVD

Published: 2026-07-15

Updated: 2026-07-22

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.5

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