CVE-2023-25933
A type confusion bug in TypedArray prior to commit e6ed9c1a4b02dc219de1648f44cd808a56171b81 could have been used by a malicious attacker to execute arbitrary code via untrusted JavaScript.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.89%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A type confusion bug in TypedArray prior to commit e6ed9c1a4b02dc219de1648f44cd808a56171b81 could have been used by a malicious attacker to execute arbitrary code via untrusted JavaScript. Note that this is only exploitable in cases where Hermes is used to execute untrusted JavaScript. Hence, most React Native applications are not affected.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.89% probability · 57th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-843
- Affected
- facebook/hermes
- Source
- cve-assign@fb.com
References
- https://github.com/facebook/hermes/commit/e6ed9c1a4b02dc219de1648f44cd808a56171b81Patch
- https://www.facebook.com/security/advisories/cve-2023-25933Patch, Vendor Advisory
- https://github.com/facebook/hermes/commit/e6ed9c1a4b02dc219de1648f44cd808a56171b81Patch
- https://www.facebook.com/security/advisories/cve-2023-25933Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.