CVE-2021-46463
CriticalPublic PoC
Published: 14 February 2022
Published
14 February 2022
Modified
21 November 2024
KEV Added
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Patch
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CVSS Score v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score
0.0043
63.0th percentile
Risk Priority
20
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-46463 is a critical-severity Type Confusion (CWE-843) vulnerability in F5 Njs. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 37.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-33139
Vulnerability details
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().
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
f5
njs
≤ 0.7.1
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.