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CVE-2009-2533

5.0 · MEDIUM

rmserver in RealNetworks Helix Server and Helix Mobile Server before 13.0.0 allows remote attackers to cause a denial of service (daemon exit) via multiple RTSP SET_PARAMETER requests with empty Da…

Published Jul 20, 2009realnetworksCWE-20EPSS 3.40%

Overview

CVE-2009-2533 is a medium-severity vulnerability affecting realnetworks helix_server. It was published on July 20, 2009 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

rmserver in RealNetworks Helix Server and Helix Mobile Server before 13.0.0 allows remote attackers to cause a denial of service (daemon exit) via multiple RTSP SET_PARAMETER requests with empty DataConvertBuffer headers.

Remediation

Check the references section for vendor advisories and patches from realnetworks. Update helix_server 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
realnetworkshelix_server0Affected
realnetworkshelix_server_mobile0Affected

References

Refdocs.real.com/docs/security/SecurityUpdate071409HS.pdfRefosvdb.org/55981Refwww.coresecurity.com/content/real-helix-dnaRefwww.exploit-db.com/exploits/9198Refwww.securityfocus.com/archive/1/505083/100/0/threadedRefwww.securityfocus.com/bid/35731Refwww.vupen.com/english/advisories/2009/1947Refdocs.real.com/docs/security/SecurityUpdate071409HS.pdfRefosvdb.org/55981Refwww.coresecurity.com/content/real-helix-dna

How CyberStrike helps

Frequently asked questions

What is CVE-2009-2533?

CVE-2009-2533 is a medium-severity vulnerability affecting realnetworks helix_server. It was published on July 20, 2009 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

How severe is CVE-2009-2533?

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2009-2533?

Check the references section for vendor advisories and patches from realnetworks. Update helix_server 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-2009-2533?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2009-2533 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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