Is CVE-2012-1904 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2012-1904, but active exploitation has not been confirmed.

Can CVE-2012-1904 be exploited remotely?

Yes. CVE-2012-1904 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2012-1904?

CVE-2012-1904 has a CVSS score of 4.3 (MEDIUM).

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MEDIUMPOC

CVE-2012-1904

CWE-119Published: March 28, 2012· Updated: Jun 16, 2026

4.3

CVSS v3.1

Official Description

mp4fformat.dll in the QuickTime File Format plugin in RealNetworks RealPlayer 15 and earlier, and RealPlayer SP 1.1.4 Build 12.0.0.756 and earlier, allows remote attackers to cause a denial of service (memory corruption and application crash) via a crafted MP4 file.

NVD Source

Technical Analysis

CVE-2012-1904 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A proof-of-concept (PoC) exploit exists for CVE-2012-1904. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

From a weakness classification perspective (CWE-119): Buffer overflow vulnerabilities can lead to arbitrary code execution or denial of service by corrupting adjacent memory.