CVE-2021-24045 is a critical type confusion vulnerability in Facebook Hermes versions prior to v0.10.0, specifically when resolving the "typeof" unary operator. This flaw carries a CVSS score of 9.8, indicating a severe impact with potential for complete compromise (confidentiality, integrity, and availability) through network-based attacks requiring no user interaction. While highly severe, exploitation is contingent on applications using Hermes allowing untrusted JavaScript evaluation, meaning most React Native applications are not affected. Currently, there is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 0.10.0CPE matchmatch criteria | cpe:2.3:a:facebook:hermes:*:*:*:*:*:*:*:* |
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.