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

CVE-2023-23557

CVE-2023-23557

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.

AI Insight

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

Affected products

3
  • Facebook/Hermescpe-rescue3 versions
    0+ 2 more
    • (no CPE)range: 0
    • cpe:2.3:a:facebook:hermes:*:*:*:*:*:*:*:*range: <2023-01-10
    • (no CPE)range: <a00d237346894c6067a594983be6634f4168c9ad

Patches

Vulnerability mechanics

References

2

News mentions

0

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