CVE-2021-46463

moderate-risk
Published 2022-02-14

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().

Do I need to act?

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0.46% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (1)

Njs

Affected Vendors

F5

References (6)

Patch https://github.com/nginx/njs/commit/6a40a85ff239497c6458c7dbef18f6a2736fe992
Exploit https://github.com/nginx/njs/issues/447
Third Party Advisory https://security.netapp.com/advisory/ntap-20220303-0007/
Patch https://github.com/nginx/njs/commit/6a40a85ff239497c6458c7dbef18f6a2736fe992
Exploit https://github.com/nginx/njs/issues/447
Third Party Advisory https://security.netapp.com/advisory/ntap-20220303-0007/
39
/ 100
moderate-risk
Severity 32/34 · Critical
Exploitability 2/34 · Minimal
Exposure 5/34 · Minimal