What is CVE-2022-3534?

CVE-2022-3534 is a medium-severity vulnerability in Linux Kernel, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.5/10. Published 2022-10-17.

How severe is CVE-2022-3534?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Is CVE-2022-3534 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Linux Kernel

CVE-2022-3534

A vulnerability has been found in Linux Kernel up to 5.10.162/5.15.85/6.0.15/6.1.1. The impacted element is the function btf_dump_name_dups of the file tools/lib/bpf/btf_dump.c of the component libbpf. The manipulation leads to use after free. Upgrading to version 5.10.163, 5.15.86, 6.0.16, 6.1.2 and 6.2 is sufficient to resolve this issue. The identifier of the patch is c61650b869e0b6fb0c0a28ed42d928eea969afc8/fbe08093fb2334549859829ef81d42570812597d/8c64a8e76eb85d422af5ec60ccbf26e3ead8c333/a733bf10198eb5bb927890940de8ab457491ed3b/93c660ca40b5d2f7c1b1626e955a8e9fa30e0749. You should upgrade the affected component.

Vulnerability class: Buffer Overflow

Published 2022-10-17 · last modified 2026-08-26.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.009 (58.6th percentile), scored 2026-10-04.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 58.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: +0.000

Affected products

Linux Kernel — versions 6.0.15, 5.15.70, 5.15.37
Linux Kernel
Debian Linux — versions 11.0

Weakness classification (CWE)

Public proof-of-concept exploits

w4zu/Debian_

References

git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/ (Patch, patch, Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Permissions Required, Third Party Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)
vuldb.com/vuln/211032 (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
vuldb.com/vuln/211032/cti (signature, permissions-required, VDB Entry, Third Party Advisory)
vuldb.com/cve/CVE-2022-3534 (VDB Entry, Third Party Advisory, third-party-advisory)
www.kernel.org/ (Product, product)

Frequently asked questions

What is CVE-2022-3534?: CVE-2022-3534 is a medium-severity vulnerability in Linux Kernel, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.5/10. Published 2022-10-17.
How severe is CVE-2022-3534?: Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2022-3534 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.