CVE-2023-25933

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.48%
Vendor Advisory facebook.com
Affected: Facebook Hermes
Published at:
Updated at:

References

Link Tags
https://www.facebook.com/security/advisories/cve-2023-25933 patch vendor advisory
https://github.com/facebook/hermes/commit/e6ed9c1a4b02dc219de1648f44cd808a56171b81 patch

Frequently Asked Questions

What is the severity of CVE-2023-25933?
CVE-2023-25933 has been scored as a critical severity vulnerability.
How to fix CVE-2023-25933?
To fix CVE-2023-25933, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-25933 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-25933 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-25933?
CVE-2023-25933 affects Facebook Hermes.
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