What’s Vulnerable › Vulnerabilities

CVE-2023-28081

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% 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-416

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.

Affected products

• Facebook Hermes: all versions

References

• https://github.com/facebook/hermes/commit/e6ed9c1a4b02dc219de1648f44cd808a56171b81
• https://www.facebook.com/security/advisories/cve-2023-28081
• https://github.com/facebook/hermes/commit/e6ed9c1a4b02dc219de1648f44cd808a56171b81
• https://www.facebook.com/security/advisories/cve-2023-28081

Get alerted when CVE-2023-28081 or the next vulnerability affects your stack