CVEvulnerability
CVE-2023-23557
9.8 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2023-05-18
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-843
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.
Affected configurations
• facebook hermes (< 2023-01-10)
Related
Weakness · CWE (1)
- CWE-843 Access of Resource Using Incompatible Type weakness
References
- https://github.com/facebook/hermes/commit/a00d237346894c6067a594983be6634f4168c9ad Patch, Vendor Advisory
- https://www.facebook.com/security/advisories/cve-2023-23557 Patch, Vendor Advisory
- https://github.com/facebook/hermes/commit/a00d237346894c6067a594983be6634f4168c9ad Patch, Vendor Advisory
- https://www.facebook.com/security/advisories/cve-2023-23557 Patch, Vendor Advisory