CVE-2009-2534

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 8.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2009-07-20 · updated 2026-06-16
Weakness: CWE-20

Description

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.

Affected products

RealNetworks Helix Server: through 12.0.1; 11.0, 12.0.0
RealNetworks Helix Server Mobile: through 12.0.0; 11.0

References

http://docs.real.com/docs/security/SecurityUpdate071409HS.pdf
http://osvdb.org/55982
http://www.coresecurity.com/content/real-helix-dna
http://www.exploit-db.com/exploits/9198
http://www.securityfocus.com/archive/1/505083/100/0/threaded
http://www.securityfocus.com/bid/35732
http://www.vupen.com/english/advisories/2009/1947
http://docs.real.com/docs/security/SecurityUpdate071409HS.pdf
http://osvdb.org/55982
http://www.coresecurity.com/content/real-helix-dna
http://www.exploit-db.com/exploits/9198
http://www.securityfocus.com/archive/1/505083/100/0/threaded

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