CVE-2026-26157

Busybox: busybox: arbitrary file overwrite and potential code execution via incomplete path sanitization

CVSS 7 HIGHEPSS 0.7%CWE-73

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 7EPSS 0.7%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

11 Feb 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

A flaw was found in BusyBox. Incomplete path sanitization in its archive extraction utilities allows an attacker to craft malicious archives that when extracted, and under specific conditions, may write to files outside the intended directory. This can lead to arbitrary file overwrite, potentially enabling code execution through the modification of sensitive system files.

CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

Red Hat · Red Hat Enterprise Linux 6 Red Hat · Red Hat Hardened Images

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References

https://access.redhat.com/errata/RHSA-2026:13831 https://access.redhat.com/security/cve/CVE-2026-26157 https://bugzilla.redhat.com/show_bug.cgi?id=2439039 https://cert-portal.siemens.com/productcert/html/ssa-253495.html https://git.busybox.net/busybox/commit/archival?id=3fb6b31c716669e12f75a2accd31bb7685b1a1cb