Is CVE-2021-40418 actively exploited?

No active exploitation of CVE-2021-40418 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-40418 be exploited remotely?

Yes. CVE-2021-40418 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-40418?

CVE-2021-40418 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2021-40418

CRITICAL

CVE-2021-40418

CWE-457Published: December 22, 2021· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

When parsing a file that is submitted to the DPDecoder service as a job, the R3D SDK will mistakenly skip over the assignment of a property containing an object referring to a UUID that was parsed from a frame within the video container. Upon destruction of the object that owns it, the uninitialized member will be dereferenced and then destroyed using the object’s virtual destructor. Due to the object property being uninitialized, this can result in dereferencing an arbitrary pointer for the object’s virtual method table, which can result in code execution under the context of the application.

NVD Source

Technical Analysis

CVE-2021-40418 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.