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Critical severity9.8NVD Advisory· Published May 18, 2023· Updated Jun 17, 2026

CVE-2023-30470

CVE-2023-30470

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

3
  • Facebook/Hermes3 versions
    cpe:2.3:a:facebook:hermes:-:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:a:facebook:hermes:-:*:*:*:*:*:*:*
    • (no CPE)range: <da8990f737ebb9d9810633502f65ed462b819c09
    • (no CPE)range: 0

Patches

Vulnerability mechanics

References

2

News mentions

0

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