Is CVE-2021-24030 actively exploited?

No active exploitation of CVE-2021-24030 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-24030 be exploited remotely?

Yes. CVE-2021-24030 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-24030?

CVE-2021-24030 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2021-24030

CRITICAL

CVE-2021-24030

CWE-88Published: March 10, 2021· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

The fbgames protocol handler registered as part of Facebook Gameroom does not properly quote arguments passed to the executable. That allows a malicious URL to cause code execution. This issue affects versions prior to v1.26.0.

NVD Source

Technical Analysis

CVE-2021-24030 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 9.8.