CVE-2023-28081
Critical
Description
A bytecode optimization bug in Hermes prior to commit e6ed9c1a4b02dc219de1648f44cd808a56171b81 could be used to cause an use-after-free and obtain arbitrary code execution via a carefully crafted payload. 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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