CVE-2024-3856 is a high-severity use-after-free vulnerability affecting Mozilla Firefox versions prior to 125, occurring during WASM execution if garbage collection runs during array creation. With a CVSS score of 8.8, it presents a significant risk (CWE-416) due to its network-based attack vector, low attack complexity, and high potential for confidentiality, integrity, and availability impacts, requiring user interaction. Currently, there is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage, indicating a low immediate threat but a critical patching requirement.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 125.0CPE matchmatch criteria | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* | ||
< 125CPE match | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/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, 0.2 Bluesky, 0.1 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 0.1 Security Researcher mentions.