Vulnerability Details CVE-2023-23556
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 60.3%
CVSS Severity
CVSS v3 Score 9.8
References
Products affected by CVE-2023-23556
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cpe:2.3:a:facebook:hermes:-
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cpe:2.3:a:facebook:hermes:0.0.1
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cpe:2.3:a:facebook:hermes:0.0.2
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cpe:2.3:a:facebook:hermes:0.0.3
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cpe:2.3:a:facebook:hermes:0.1.0
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cpe:2.3:a:facebook:hermes:0.1.1
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cpe:2.3:a:facebook:hermes:0.10.0
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cpe:2.3:a:facebook:hermes:0.12.0
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cpe:2.3:a:facebook:hermes:0.2.1
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cpe:2.3:a:facebook:hermes:0.3.0
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cpe:2.3:a:facebook:hermes:0.4.0
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cpe:2.3:a:facebook:hermes:0.4.1
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cpe:2.3:a:facebook:hermes:0.4.3
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cpe:2.3:a:facebook:hermes:0.4.4
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cpe:2.3:a:facebook:hermes:0.5.0
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cpe:2.3:a:facebook:hermes:0.5.1
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cpe:2.3:a:facebook:hermes:0.5.2
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cpe:2.3:a:facebook:hermes:0.5.3
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cpe:2.3:a:facebook:hermes:0.6.0
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cpe:2.3:a:facebook:hermes:0.7.0
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cpe:2.3:a:facebook:hermes:0.7.1
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cpe:2.3:a:facebook:hermes:0.7.2
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cpe:2.3:a:facebook:hermes:0.8.0
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cpe:2.3:a:facebook:hermes:0.8.1
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cpe:2.3:a:facebook:hermes:0.9.0
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cpe:2.3:a:facebook:hermes:2020-09-25
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cpe:2.3:a:facebook:hermes:2020-10-01
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cpe:2.3:a:facebook:hermes:2022-09-27