What is CVE-2022-34421?

CVE-2022-34421 is a high-severity vulnerability in Dell C4130, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.5/10. Published 2023-03-16.

How severe is CVE-2022-34421?

High severity. CVSS v3 base score is 7.5 out of 10.

Buffer overflow in Dell C4130

CVE-2022-34421

Dell PowerEdge BIOS and Dell Precision BIOS contain an Improper SMM communication buffer verification vulnerability. A local malicious user with high Privileges may potentially exploit this vulnerability to perform arbitrary code execution or cause denial of service.

Vulnerability class: Buffer Overflow

Published 2023-03-16 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (5.9th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 5.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

References

www.dell.com/support/kbdoc/en-us/000206296/dsa-2022-204-dell-poweredge-improper… (vendor-advisory, Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2022-34421?: CVE-2022-34421 is a high-severity vulnerability in Dell C4130, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.5/10. Published 2023-03-16.
How severe is CVE-2022-34421?: High severity. CVSS v3 base score is 7.5 out of 10.