CVE-2022-40138
Last modified
CVE-2022-40138 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An integer conversion error in Hermes bytecode generation, prior to commit 6aa825e480d48127b480b08d13adf70033237097, could have been used to perform Out-Of-Bounds operations and subsequently execute arbitrary code. Note that this is only exploitable in cases where Hermes is used to execute untrusted JavaScript. EPSS estimates a 0.89% chance of exploitation in the next 30 days.
Description
An integer conversion error in Hermes bytecode generation, prior to commit 6aa825e480d48127b480b08d13adf70033237097, could have been used to perform Out-Of-Bounds operations and subsequently execute arbitrary code. Note that this is only exploitable in cases where Hermes is used to execute untrusted JavaScript. Hence, most React Native applications are not affected.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Hermes | < 2022-09-27 |
References
- https://github.com/facebook/hermes/commit/6aa825e480d48127b480b08d13adf70033237097Patch, Third Party Advisory
- https://www.facebook.com/security/advisories/CVE-2022-40138Vendor Advisory
- https://github.com/facebook/hermes/commit/6aa825e480d48127b480b08d13adf70033237097Patch, Third Party Advisory
- https://www.facebook.com/security/advisories/CVE-2022-40138Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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