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CVE-2011-4256

10.0 · HIGH

The RV30 codec in RealNetworks RealPlayer before 15.0.0 and Mac RealPlayer before 12.0.0.1703 does not initialize an unspecified index value, which allows remote attackers to execute arbitrary code…

Published Nov 24, 2011realnetworksCWE-94EPSS 4.25%

Overview

CVE-2011-4256 is a high-severity vulnerability affecting realnetworks realplayer. It was published on November 24, 2011 and has a CVSS 2.0 base score of 10.0 (HIGH).

This vulnerability has a CVSS 2.0 base score of 10.0, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

The RV30 codec in RealNetworks RealPlayer before 15.0.0 and Mac RealPlayer before 12.0.0.1703 does not initialize an unspecified index value, which allows remote attackers to execute arbitrary code via unknown vectors.

Remediation

Check the references section for vendor advisories and patches from realnetworks. Update realplayer to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
realnetworksrealplayer0Affected

References

Refservice.real.com/realplayer/security/11182011_player/en/Refservice.real.com/realplayer/security/11182011_player/en/

How CyberStrike helps

Frequently asked questions

What is CVE-2011-4256?

CVE-2011-4256 is a high-severity vulnerability affecting realnetworks realplayer. It was published on November 24, 2011 and has a CVSS 2.0 base score of 10.0 (HIGH).

How severe is CVE-2011-4256?

This vulnerability has a CVSS 2.0 base score of 10.0, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2011-4256?

Check the references section for vendor advisories and patches from realnetworks. Update realplayer to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2011-4256?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2011-4256 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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