What’s Vulnerable › Vulnerabilities

CVE-2023-24832

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-05-18 · updated 2026-06-17
• Weakness: CWE-476

Description

A null pointer dereference bug in Hermes prior to commit 5cae9f72975cf0e5a62b27fdd8b01f103e198708 could have been used by an attacker to crash an Hermes runtime where the EnableHermesInternal config option was set to true. Note that this is only exploitable in cases where Hermes is used to execute untrusted JavaScript. Hence, most React Native applications are not affected.

Affected products

• Facebook Hermes: before 2023-01-31 — fixed in 2023-01-31

How to fix

Upgrade to a fixed version: Facebook Hermes 2023-01-31. Check the vendor advisory for mitigations.

References

• https://github.com/facebook/hermes/commit/5cae9f72975cf0e5a62b27fdd8b01f103e198708
• https://www.facebook.com/security/advisories/cve-2023-24832
• https://github.com/facebook/hermes/commit/5cae9f72975cf0e5a62b27fdd8b01f103e198708
• https://www.facebook.com/security/advisories/cve-2023-24832

Get alerted when CVE-2023-24832 or the next vulnerability affects your stack