Buffer overflow in Busybox

CVE-2026-38752

A stack overflow in the evaluate() function (editors/awk.c) of BusyBox commit 371fe9 allows attackers to cause a Denial of Service (DoS) via supplying a crafted AWK script.

Vulnerability class: Buffer Overflow

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

  • Busybox — versions 2024-07-13
  • N/a — versions n/a

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-38752?
CVE-2026-38752 is a high-severity vulnerability in Busybox, classified under Stack-based Buffer Overflow. CVSS score: 7.5/10. Published 2026-07-15.
How severe is CVE-2026-38752?
High severity. CVSS v3 base score is 7.5 out of 10.