CVE-2022-35289 json
A write-what-where condition in hermes caused by an integer overflow, prior to commit 5b6255ae049fa4641791e47fad994e8e8c4da374 allows attac…
published 2022-10-11 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-38179
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.2%
- EPSS 1.2% chance of exploitation in 30 days, percentile 68%
- public exploits
- 0
- none known
Summary
A write-what-where condition in hermes caused by an integer overflow, prior to commit 5b6255ae049fa4641791e47fad994e8e8c4da374 allows attackers to potentially execute arbitrary code via crafted JavaScript. Note that this is only exploitable if the application using Hermes permits evaluation of untrusted JavaScript. Hence, most React Native applications are not affected.
Patch / fix
- Facebook Hermes prior to commit 5b6255ae049fa4641791e47fad994e8e8c4da374
Exploit prediction
1.20% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- Facebook Hermes
Classification
References
-
github.com
/facebook/hermes/commit/5b6255ae049fa4641791e47fad994e8e8c4da374
patch, third-party-advisory
-
facebook.com
/security/advisories/CVE-2022-35289
vendor-advisory
Sources
- CVE List CVE-2022-35289
- NVD CVE-2022-35289
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.