CVE-2026-38755: A heap overflow in the evalcommand() function (shell/ash.c) of Busybox v1.38.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted input.

Overview

Severity
High (CVSS 7.5)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploit Status
Not Exploited
Patch Tuesday
2026-Jul
Released
2026-07-19
EPSS Score
0.31% (percentile: 22.8%)

Affected Products (1)

Open Source Software

  • azl3 busybox 1.36.1-24 on Azure Linux 3.0

Revision History

  • 2026-07-19: Information published.