Is CVE-2020-1912 actively exploited?

No active exploitation of CVE-2020-1912 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-1912 be exploited remotely?

Yes. CVE-2020-1912 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-1912?

CVE-2020-1912 has a CVSS score of 8.1 (HIGH).

HOME VULNERABILITIESCVE-2020-1912

HIGH

CVE-2020-1912

CWE-787Published: September 9, 2020· Updated: Jun 17, 2026

8.1

CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2020-1912 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.1.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.