Description
A type confusion bug in TypedArray prior to commit e6ed9c1a4b02dc219de1648f44cd808a56171b81 could have been used by a malicious attacker to execute arbitrary code via untrusted JavaScript. Note that this is only exploitable in cases where Hermes is used to execute untrusted JavaScript. Hence, most React Native applications are not affected.
References (2)
Core 2
Core References
Patch, Vendor Advisory x_refsource_confirm
https://www.facebook.com/security/advisories/cve-2023-25933
Scores
CVSS v3
9.8
EPSS
0.0092
EPSS Percentile
76.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
total
Details
CWE
CWE-843
Status
published
Products (1)
facebook/hermes
Published
May 18, 2023
Tracked Since
Feb 18, 2026