What is CVE-2026-38754?

CVE-2026-38754 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. 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.

Which CVE IDs does CVE-2026-38754 cover?

CVE-2026-38754 covers the following CVE IDs: CVE-2026-38754. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-38754?

CVE-2026-38754 has a CVSS v3 base score of 7.5, published by Microsoft Security Response Center (MSRC).

CVE-2026-38754HighCVSS 7.5

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.

Vendor

Microsoft Security Response Center (MSRC)

Published

July 23, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-38754 →