CVE-2020-1912
Out-of-bounds Read and Out-of-bounds Write in Facebook Hermes
8.1
HIGH
CVSS 3.1
EPSS 1.6%
Description
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.
How to fix CVE-2020-1912
To remediate CVE-2020-1912, upgrade the affected package to a fixed version below.
- —upgrade to 0.5.2 or later
Is CVE-2020-1912 being exploited?
Low — EPSS is 1.6%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 0.5.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |