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Vulnerability record · CVE-2022-30065 · published 18 May 2022

CVE-2022-30065: Busybox use after free vulnerability

Busybox · Busybox

A use-after-free in Busybox 1.35-x's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the copyvar function.

7.8 CVSS 3.1 High EPSS 1.3% · top 31.7% CWE-416 · Use after free
7.8CVSS 3.1 base score, v2 6.8
1.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
7Affected product versions listed by NVD
4References, 2 tagged exploit
7 Jul 2026Last modified by NVD

Description

A use-after-free in Busybox 1.35-x's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the copyvar function.

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

Affected products

7 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://bugs.busybox.net/show_bug.cgi?id=14781 ExploitIssue TrackingThird Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-333517.pdf Third Party Advisory
https://bugs.busybox.net/show_bug.cgi?id=14781 ExploitIssue TrackingThird Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-333517.pdf Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2022-30065), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.