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CVE-2023-23557

CRITICAL

9.8

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.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published5/18/2023

Last Modified1/21/2025

Sourcenvd

Honeypot Sightings0

Affected Products

facebook:hermes

Weaknesses (CWE)

CWE-843CWE-843

References

https://github.com/facebook/hermes/commit/a00d237346894c6067a594983be6634f4168c9ad(cve-assign@fb.com)

https://www.facebook.com/security/advisories/cve-2023-23557(cve-assign@fb.com)

https://github.com/facebook/hermes/commit/a00d237346894c6067a594983be6634f4168c9ad(af854a3a-2127-422b-91ae-364da2661108)

https://www.facebook.com/security/advisories/cve-2023-23557(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.