CVE-2022-30065

Name: CVE-2022-30065
Creator: NVD / NIST
Published: 2022-05-18T15:15:10.24+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 1.17%

Last modified Jun 17, 2026

CVE-2022-30065 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. EPSS estimates a 1.17% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

1.17%

63.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-416

Affected Software

Vendor	Product	Versions
Busybox	Busybox	1.35.0
Siemens	Scalance Sc622-2c Firmware	< 3.0
Siemens	Scalance Sc626-2c Firmware	< 3.0
Siemens	Scalance Sc632-2c Firmware	< 3.0
Siemens	Scalance Sc636-2c Firmware	< 3.0
Siemens	Scalance Sc642-2c Firmware	< 3.0
Siemens	Scalance Sc646-2c Firmware	< 3.0

References

https://bugs.busybox.net/show_bug.cgi?id=14781Exploit, Issue Tracking, Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-333517.pdfThird Party Advisory
https://bugs.busybox.net/show_bug.cgi?id=14781Exploit, Issue Tracking, Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-333517.pdfThird Party Advisory

Timeline

Published: May 18, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-30065?

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.

How severe is CVE-2022-30065?

CVE-2022-30065 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 1.17% probability of exploitation in the next 30 days.

How do I fix CVE-2022-30065?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-30065?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST