CVE-2022-40138
moderate-risk
Published 2022-10-11
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.
Do I need to act?
~
1.2% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10
Critical
NETWORK
/ LOW complexity
Affected Products (1)
Affected Vendors
References (4)
Vendor Advisory
https://www.facebook.com/security/advisories/CVE-2022-40138
Vendor Advisory
https://www.facebook.com/security/advisories/CVE-2022-40138
41
/ 100
moderate-risk
Severity
32/34 · Critical
Exploitability
4/34 · Minimal
Exposure
5/34 · Minimal