CVE-2020-1912
moderate-risk
Published 2020-09-09
An out-of-bounds read/write vulnerability when executing lazily compiled inner generator functions in Facebook Hermes prior to commit 091835377369c8fd5917d9b87acffa721ad2a168 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.
Do I need to act?
~
1.6% 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
8
CVSS 8.1/10
High
NETWORK
/ HIGH complexity
Affected Products (1)
Affected Vendors
References (4)
Vendor Advisory
https://www.facebook.com/security/advisories/cve-2020-1912
Vendor Advisory
https://www.facebook.com/security/advisories/cve-2020-1912
33
/ 100
moderate-risk
Severity
24/34 · High
Exploitability
4/34 · Minimal
Exposure
5/34 · Minimal