CVE-2023-23557

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Source
https://cve.org/CVERecord?id=CVE-2023-23557
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-23557.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2023-23557
Published
2023-05-18T21:19:41Z
Modified
2026-10-31T07:05:23Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

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.

Database specific 
{
    "cna_assigner":  "facebook",
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/23xxx/CVE-2023-23557.json"
}
References

Affected packages

Git / github.com/facebook/hermes

Affected ranges

Type
GIT
Repo
https://github.com/facebook/hermes
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
a00d237346894c6067a594983be6634f4168c9ad
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "a00d237346894c6067a594983be6634f4168c9ad"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StandardRange"
        },
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "a00d237346894c6067a594983be6634f4168c9ad"
                }
            ],
            "source":  "DESCRIPTION"
        }
    ]
}
Type
GIT
Repo
https://github.com/meta/hermes
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
a00d237346894c6067a594983be6634f4168c9ad
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "fixed":  "a00d237346894c6067a594983be6634f4168c9ad"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

hermes-2022-04-28-RNv0.*
hermes-2022-04-28-RNv0.69.0-15d07c2edd29a4ea0b8f15ab0588a0c1adb1200f
hermes-2022-07-15-RNv0.*
hermes-2022-07-15-RNv0.70.0-88dd5731a19ab6b38b0a0a2d4386ba959f2a2c98
hermes-2022-11-03-RNv0.*
hermes-2022-11-03-RNv0.71.0-85613e1f9d1216f2cce7e54604be46057092939d
v0.*
v0.1.0
v0.1.1
v0.10.0
v0.11.0
v0.12.0
v0.2.1
v0.3.0
v0.4.0
v0.5.0
v0.6.0
v0.7.0
v0.8.0
v0.9.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-23557.json"
vanir_signatures 
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vanir_signatures_modified 
"2026-10-31T07:05:23Z"