CVE-2023-30470
Critical
Description
A use-after-free related to unsound inference in the bytecode generation when optimizations are enabled for Hermes prior to commit da8990f737ebb9d9810633502f65ed462b819c09 could have been used by an attacker to achieve remote code execution. Note that this is only exploitable in cases where Hermes is used to execute untrusted JavaScript. Hence, most React Native applications are not affected.
SeverityCritical
CVSS9.8
Exploit probability—
Product
Facebook Hermes
PublishedMay 18, 2023
First seenMay 18, 2023
Weakness typeCWE-416Use after free
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| facebook hermes | No range specified | — |
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