CVE-2021-46463
CVSS v3
9.8
CRITICAL
EPSS Score
1.7 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
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().
Technical details
- Published
- 2022-02-14
Frequently asked questions
What is 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().
Is CVE-2021-46463 actively exploited?
Active exploitation of CVE-2021-46463 has not been confirmed. Its EPSS score was 1.7% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-46463?
CVE-2021-46463 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2021-46463 affecting your environment?
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