CVE-2009-2534

RealNetworks Helix Server and Helix Mobile Server before 13.0.0 allow remote attackers to cause a...

5.0 MediumPublic exploit

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.

Exploit likelihood

8.83%Up 7.5 points since Feb 4, 2022

What each source reports

NVD Score used 5.0

Record: CVE-2009-2534
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness: CWE-20
Updated: 2026-11-02

CVE List No score

Record: CVE-2009-2534
Updated: 2026-11-02

EUVDEUVD-2009-2529 No score

Record: EUVD-2009-2529
Updated: 2026-11-03

GitHub AdvisoriesGHSA-wcpv-6xc3-pvh5 No score

RealNetworks Helix Server and Helix Mobile Server before 13.0.0 allow remote attackers to cause a...

Record: GHSA-wcpv-6xc3-pvh5
Weakness: CWE-20
Updated: 2026-11-02

Affected products

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Exploit-DB	Real Helix DNA - 'RTSP' / 'SETUP' Request Handler	2009-07-17

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, Exploit-DB, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2009-2534 is a medium vulnerability (CVSS 5.0) in Realnetworks Helix Server, published July 20, 2009. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 8.83%, the 95th percentile. No source names a fixed version.