CVE-2021-46463 is a critical Type Confusion vulnerability (CWE-843) in njs through version 0.7.1, a JavaScript engine used in NGINX, specifically within the njs_promise_perform_then() function. This flaw allows for a control flow hijack. With a CVSS score of 9.8 (CRITICAL), it presents a severe risk as it can be exploited remotely over the network with low attack complexity, potentially leading to complete compromise of confidentiality, integrity, and availability. Despite its high severity, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 0.7.1CPE matchmatch criteria | cpe:2.3:a:f5:njs:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.