What is CVE-2021-46463?

CVE-2021-46463 is a critical-severity vulnerability in F5 Njs, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 9.8/10. Published 2022-02-14.

How severe is CVE-2021-46463?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in F5 Njs

CVE-2021-46463

njs through 0.7.1, used in NGINX, was discovered to contain a control flow hijack caused by a Type Confusion vulnerability in njs_promise_perform_then().

EPSS: 0.017 (74.1th 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-843 — Access of Resource Using Incompatible Type (Type Confusion)

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-2021-46463?: CVE-2021-46463 is a critical-severity vulnerability in F5 Njs, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 9.8/10. Published 2022-02-14.
How severe is CVE-2021-46463?: Critical severity. CVSS v3 base score is 9.8 out of 10.