CVE-2009-2533

NONECVSS 0.0Trending — 3 sources updated this weekWeaponized

0.0

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.

CVSS v3: —
EG Score: 0.0(none)
EPSS: 92.5%
KEV: Not listed

Published

July 20, 2009

Last Modified

April 23, 2026

References (14)

cve@mitrehttp://docs.real.com/docs/security/SecurityUpdate071409HS.pdf
cve@mitrehttp://osvdb.org/55981
cve@mitrehttp://www.coresecurity.com/content/real-helix-dna
cve@mitrehttp://www.exploit-db.com/exploits/9198
cve@mitrehttp://www.securityfocus.com/archive/1/505083/100/0/threaded
cve@mitrehttp://www.securityfocus.com/bid/35731
cve@mitrehttp://www.vupen.com/english/advisories/2009/1947
af854a3a-2127-422b-91ae-364da2661108http://docs.real.com/docs/security/SecurityUpdate071409HS.pdf
af854a3a-2127-422b-91ae-364da2661108http://osvdb.org/55981
af854a3a-2127-422b-91ae-364da2661108http://www.coresecurity.com/content/real-helix-dna
af854a3a-2127-422b-91ae-364da2661108http://www.exploit-db.com/exploits/9198
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/archive/1/505083/100/0/threaded
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/35731
af854a3a-2127-422b-91ae-364da2661108http://www.vupen.com/english/advisories/2009/1947

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-20Improper Input Validation

Data Freshness Timeline

(refreshed 13× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-04 13:09 UTCepss_batch
2026-06-04 13:09 UTCepss_batch
2026-06-02 20:10 UTCepss_batch
2026-06-02 20:10 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 00:13 UTCepss_batch
2026-05-31 00:13 UTCepss_batch
2026-05-30 16:06 UTCEG score recompute
2026-05-30 16:06 UTCGHSA enrichment
2026-05-29 13:40 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
2026-05-26 13:41 UTCepss_batch

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Exploit-DBEDB-9198✓ verified
First seen Jul 17, 2009
Real Helix DNA - 'RTSP' / 'SETUP' Request Handler
Open source ↗

Frequently asked(4)

What is CVE-2009-2533?

CVE-2009-2533 is a none vulnerability published on July 20, 2009. 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.

When was CVE-2009-2533 disclosed?

CVE-2009-2533 was first published in the National Vulnerability Database on July 20, 2009, with the most recent update on April 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2009-2533 actively exploited?

CVE-2009-2533 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 92.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-2009-2533?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2009-2533, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-2009-2533

📅 Published

🔄 Last Modified

🔗 References (14)

Weakness Classification(1)

Data Freshness Timeline

Publicly available exploits

❓ Frequently asked(4)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2009-2533?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (14)

Frequently asked(4)

Related CVEs(same CWE)