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Critical · 9.8 CVE-2023-23556 EUVD-2023-27656GHSA-5wwx-r37w-hqhw

An error in BigInt conversion to Number in Hermes prior to commit a6dcafe6ded8e61658b40f5699878cd19a481f80 could have been used by a malici…

Published May 18, 2023 · Updated Jan 31, 2025 · Assigned by facebook

Description

An error in BigInt conversion to Number in Hermes prior to commit a6dcafe6ded8e61658b40f5699878cd19a481f80 could have been used by a malicious attacker to execute arbitrary code due to an out-of-bound write. Note that this bug is only exploitable in cases where Hermes is used to execute untrusted JavaScript. Hence, most React Native applications are not affected.

Affected products

VendorProductAffectedFixed
Facebook Hermes — —

References