Use After Free in Busybox

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.

Vulnerability class: Use-After-Free

EPSS: 0.012 (63.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2022-30065?
CVE-2022-30065 is a high-severity vulnerability in Busybox, classified under Use After Free. CVSS score: 7.8/10. Published 2022-05-18.
How severe is CVE-2022-30065?
High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2022-30065 known to be exploited?
11 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.