CVE-2021-33797 describes a critical buffer overflow vulnerability in Artifex MuJS versions 1.0.1 to 1.1.1, specifically within the jsdtoa.c component. This flaw stems from an integer overflow during floating-point exponent parsing by js_strtod(), leading to a buffer overflow in the *d pointer. With a CVSS score of 9.8 (CRITICAL), this vulnerability is easily exploitable over the network with low complexity, potentially allowing for complete compromise of confidentiality, integrity, and availability. Despite its severity, there is currently no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 1.0.1, <= 1.1.1CPE matchmatch criteria | cpe:2.3:a:artifex:mujs:*:*:*:*:*:*:*:* |
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.