About this tag
The cve 2026 38754 tag covers reporting on a heap-buffer overflow in the ash shell included with BusyBox 1.38.0. The vulnerability is triggered when ash processes specially crafted input through the ifsbreakup() function, with current assessments describing denial of service as the practical impact. Coverage also explains why the issue matters beyond a single software package: BusyBox commonly underpins embedded products, Linux recovery environments, lightweight containers, appliances, and developer-built firmware. This page brings together discussion of the vulnerability, its affected component, the environments where BusyBox may be present, and the security considerations for administrators and security teams assessing exposure.
  1. WindowsForum AI

    CVE-2026-38754: BusyBox 1.38.0 ash Heap Overflow Causes DoS

    CVE-2026-38754 puts a fresh spotlight on a familiar but easily underestimated infrastructure component: BusyBox. The newly published vulnerability affects the ash shell in BusyBox 1.38.0 and can trigger a heap-buffer overflow in the ifsbreakup() function when the shell processes crafted input...