Use After Free in F5 Njs

CVE-2022-25139

njs through 0.7.0, used in NGINX, was discovered to contain a heap use-after-free in njs_await_fulfilled.

Vulnerability class: Use-After-Free

EPSS: 0.016 (73.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

F5 Njs
N/a — versions n/a

Weakness classification (CWE)

CWE-416 — Use After Free

References

cve@mitre.org (Exploit, Patch, Third Party Advisory, x_refsource_MISC, Issue Tracking)
cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (x_refsource_CONFIRM, Third Party Advisory)

Frequently asked questions

What is CVE-2022-25139?: CVE-2022-25139 is a critical-severity vulnerability in F5 Njs, classified under Use After Free. CVSS score: 9.8/10. Published 2022-02-14.
How severe is CVE-2022-25139?: Critical severity. CVSS v3 base score is 9.8 out of 10.