VULNERABILITY INTELLIGENCE

CVE-2023-23557

CVSS score9.8 CRITICAL
EPSS probability0.89%
CISA KEVNot currently listed
Published2023-05-18
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

An error in Hermes' algorithm for copying objects properties prior to commit a00d237346894c6067a594983be6634f4168c9ad could be used by a malicious attacker to execute arbitrary code via type confusion. Note that this is only exploitable in cases where Hermes is used to execute untrusted JavaScript. Hence, most React Native applications are not affected.

Weakness classification

  • nvd@nist.gov: CWE-843
  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-843

Primary references