What is CVE-2022-34029?

CVE-2022-34029 is a critical-severity vulnerability in F5 Njs, classified under Out-of-bounds Read. CVSS score: 9.1/10. Published 2022-07-18.

How severe is CVE-2022-34029?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Out-of-bounds Read in F5 Njs

CVE-2022-34029

Nginx NJS v0.7.4 was discovered to contain an out-of-bounds read via njs_scope_value at njs_scope.h.

Vulnerability class: Buffer Overflow

Published 2022-07-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.

EPSS exploit prediction

EPSS: 0.012 (66.9th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 67th percentile — 66.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: +0.000

Affected products

F5 Njs — versions 0.7.4

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

github.com/nginx/njs/issues/506 (Exploit, Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2022-34029?: CVE-2022-34029 is a critical-severity vulnerability in F5 Njs, classified under Out-of-bounds Read. CVSS score: 9.1/10. Published 2022-07-18.
How severe is CVE-2022-34029?: Critical severity. CVSS v3 base score is 9.1 out of 10.