CVE-2024-43357 is a vulnerability in the ECMAScript (JavaScript) specification concerning async generators, stemming from a May 2021 spec refactor. This flaw allows IteratorResult objects, which inherit from Object.prototype, to become "then-able," leading to arbitrary behavior, potential type confusion, and pointer dereference within JavaScript engines. Rated with a CVSS score of 8.6 (High), it presents a network-based attack vector with low attack complexity and no user interaction, potentially impacting confidentiality, integrity, and availability. While the issue has been addressed in the latest ECMAScript specification, there is currently no evidence of active exploitation, nor are there publicly available exploit codes or significant community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
| Tc39 | Ecma262 | >= 2022, < 2025CNA affected |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.