Is CVE-2012-5691 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2012-5691, but active exploitation has not been confirmed.

Can CVE-2012-5691 be exploited remotely?

Yes. CVE-2012-5691 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2012-5691?

CVE-2012-5691 has a CVSS score of 9.3 (CRITICAL).

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CRITICALPOC

CVE-2012-5691

CWE-119Published: December 19, 2012· Updated: Jun 16, 2026

9.3

CVSS v3.1

Official Description

Buffer overflow in RealNetworks RealPlayer before 16.0.0.282 and RealPlayer SP 1.0 through 1.1.5 allows remote attackers to execute arbitrary code via a crafted RealMedia file.

NVD Source

Technical Analysis

CVE-2012-5691 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-2012-5691. 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.