CVE-2023-30470

CVSS 9.8 CRITICALEPSS 1.2%CWE-416

Vexday Risk Score

28Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 9.8EPSS 1.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

18 May 2023Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

A use-after-free related to unsound inference in the bytecode generation when optimizations are enabled for Hermes prior to commit da8990f737ebb9d9810633502f65ed462b819c09 could have been used by an attacker to achieve remote code execution. Note that this is only exploitable in cases where Hermes is used to execute untrusted JavaScript. Hence, most React Native applications are not affected.

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

Affected products

Facebook · Hermes

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References

https://github.com/facebook/hermes/commit/da8990f737ebb9d9810633502f65ed462b819c09 https://www.facebook.com/security/advisories/cve-2023-30470