CVE-2026-38754
Fixed in a distro release EPSS <1%CVSS 5.1
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.
Products: busybox
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Chainguard | busybox | 1.38.0-r0 |
| Chainguard | busybox-full | 1.38.0-r0 |
| Chainguard | busybox-static | 1.38.0-r0 |
| Debian 12 | busybox | no fix |
| Debian 13 | busybox | no fix |
| Debian 14 | busybox | 1:1.38.0-3 |
| Red Hat hummingbird 1 | busybox | 0:1.37.0-8.1.hum1 |
| Red Hat hummingbird 1 | busybox-petitboot | 0:1.37.0-8.1.hum1 |
| Red Hat hummingbird 1 | busybox-shared | 0:1.37.0-8.1.hum1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | busybox | 1.37.0-150700.18.21.1 |
| SUSE Linux Enterprise Server 16.0 | busybox | 1.37.0-160000.7.1 |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | busybox | 1.35.0-10.9.1 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | busybox | 1.37.0-160000.7.1 |
| SUSE Linux Micro 6.0 | busybox | 1.36.1-5.1 |
| Ubuntu 20.04 LTS | busybox | no fix |
| Ubuntu 22.04 LTS | busybox | no fix |
| Ubuntu 24.04 LTS | busybox | no fix |
| Ubuntu 26.04 LTS | busybox | no fix |
| Ubuntu 26.10 | busybox | no fix |
| Ubuntu Pro 14.04 LTS | busybox | no fix |
| Ubuntu Pro 16.04 LTS | busybox | no fix |
| Ubuntu Pro 18.04 LTS | busybox | no fix |
| Wolfi | busybox | 1.38.0-r0 |
| Wolfi | busybox-full | 1.38.0-r0 |
| Wolfi | busybox-static | 1.38.0-r0 |
| openSUSE Leap 16.0 | busybox | 1.37.0-160000.7.1 |
| openSUSE Tumbleweed | busybox | 1.38.0-2.1 |