CVE-2009-2534: n/a vulnerability

CVE-2009-2534: RealNetworks Helix Server and Helix Mobile Server before 13.0.0 allow remote attackers to cause a denial of...

RealNetworks Helix Server and Helix Mobile Server before 13.0.0 allow remote attackers to cause a denial of service (daemon crash) via an RTSP SETUP request that (1) specifies the / URI or (2) lacks a / character in the URI.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 05:52 UTC (UTC+00:00)

Security readout for executives and security teams

This is a legacy RealNetworks Helix streaming server flaw that lets a remote attacker crash the server daemon with malformed RTSP setup traffic. The direct business impact is streaming service interruption, not documented data theft or code execution in the provided sources. Exposure is likely limited to organizations still running RealNetworks Helix Server or Helix Mobile Server before 13.0.0, especially where RTSP is reachable from untrusted networks. Prioritize if Helix streaming remains internet-facing or supports business-critical media delivery. Otherwise, handle through legacy-system remediation and exposure reduction, with emphasis on retiring unsupported deployments. Mitigation focus: Inventory Helix Server and Helix Mobile Server installations.; Upgrade affected systems to 13.0.0 or later per vendor guidance.; Restrict RTSP access to trusted networks where upgrade is delayed..

Prepared: Jun 28, 2026, 10:26 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jul 20, 2009, 17:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

1Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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