CVE-2021-46525 is a high-severity heap-use-after-free vulnerability affecting Cesanta MJS v2.20.0, specifically within the mjs_apply function in src/mjs_exec.c. This flaw could allow an unauthenticated attacker to achieve high confidentiality, integrity, and availability impacts through local access and user interaction. While the CVSS score is 7.8, 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 |
|---|---|---|---|
2.20.0CPE matchmatch criteria | cpe:2.3:a:cesanta:mjs:2.20.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 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.