CVE-2002-1643

NONECVSS 0.0Weaponized
0.0
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 74%
CISA-KEV: Not listedEPSS: 74%CVSS: —Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Multiple buffer overflows in RealNetworks Helix Universal Server 9.0 (9.0.2.768) allow remote attackers to execute arbitrary code via (1) a long Transport field in a SETUP RTSP request, (2) a DESCRIBE RTSP request with a long URL argument, or (3) two simultaneous HTTP GET requests with long arguments.

CVSS v3
—
EG Score
0.0(none)
EPSS
99.4%
KEV
Not listed

Published

December 19, 2002

Last Modified

June 16, 2026

References (20)

Data Freshness Timeline

(refreshed 3× in last 7d / 13× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-13 06:07 UTCEPSS rescore
  2. 2026-07-11 08:22 UTCEPSS rescore
  3. 2026-07-11 08:22 UTCEPSS rescore
  4. 2026-07-06 02:19 UTCEPSS rescore
  5. 2026-07-02 14:00 UTCEPSS rescore
  6. 2026-06-28 14:02 UTCEPSS rescore
  7. 2026-06-28 04:52 UTCEPSS rescore
  8. 2026-06-23 21:29 UTCEPSS rescore
  9. 2026-06-18 17:49 UTCEPSS rescore
  10. 2026-06-18 17:49 UTCEPSS rescore
  11. 2026-06-16 17:49 UTCEPSS rescore
  12. 2026-06-16 17:49 UTCEPSS rescore
  13. 2026-06-15 17:43 UTCEPSS rescore
  14. 2026-06-12 23:08 UTCEPSS rescore
  15. 2026-06-11 13:55 UTCEPSS rescore
  16. 2026-06-10 22:13 UTCEPSS rescore
  17. 2026-06-08 14:13 UTCEPSS rescore
  18. 2026-06-07 15:21 UTCEPSS rescore
  19. 2026-06-06 13:44 UTCEPSS rescore
  20. 2026-06-06 13:44 UTCEPSS rescore
  21. 2026-06-06 13:44 UTCEPSS rescore
  22. 2026-06-05 22:43 UTCEPSS rescore
  23. 2026-06-05 22:43 UTCEPSS rescore
  24. 2026-06-05 06:07 UTCEPSS rescore
  25. 2026-06-04 13:09 UTCEPSS rescore
Show 16 more
  1. 2026-06-02 20:10 UTCEPSS rescore
  2. 2026-06-01 13:49 UTCEPSS rescore
  3. 2026-06-01 13:49 UTCEPSS rescore
  4. 2026-05-31 22:28 UTCEPSS rescore
  5. 2026-05-31 18:38 UTCEG score recompute
  6. 2026-05-31 18:38 UTCGHSA enrichment
  7. 2026-05-31 00:13 UTCEPSS rescore
  8. 2026-05-31 00:13 UTCEPSS rescore
  9. 2026-05-27 13:37 UTCEPSS rescore
  10. 2026-05-24 16:42 UTCEPSS rescore
  11. 2026-05-22 21:15 UTCEPSS rescore
  12. 2026-05-20 22:36 UTCEPSS rescore
  13. 2026-05-20 11:20 UTCEPSS rescore
  14. 2026-05-20 11:20 UTCEPSS rescore
  15. 2026-05-18 21:29 UTCEPSS rescore
  16. 2026-05-18 21:29 UTCEPSS rescore

Publicly available exploits

(4 references)

Working exploit code is in the public domain (1 Metasploit module) (3 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-16286✓ verified
    First seen Aug 7, 2010

    RealServer - Describe Buffer Overflow (Metasploit)

    Open source ↗
  • Exploit-DBEDB-23✓ verified
    First seen Apr 30, 2003

    RealServer < 8.0.2 (Windows Platforms) - Remote Overflow

    Open source ↗
  • Exploit-DBEDB-9937✓ verified
    First seen Dec 20, 2002

    RealServer 7-9 - Describe Buffer Overflow (Metasploit)

    Open source ↗
  • Metasploitexploit/multi/realserver/describe✓ verified
    First seen Dec 20, 2002

    RealServer Describe Buffer Overflow

    Open source ↗

Frequently asked(4)

What is CVE-2002-1643?
CVE-2002-1643 is a none vulnerability published on December 19, 2002. Multiple buffer overflows in RealNetworks Helix Universal Server 9.0 (9.0.2.768) allow remote attackers to execute arbitrary code via (1) a long Transport field in a SETUP RTSP request, (2) a DESCRIBE RTSP request with a long URL argument, or (3) two simultaneous HTTP GET requests with long…
When was CVE-2002-1643 disclosed?
CVE-2002-1643 was first published in the National Vulnerability Database on December 19, 2002, with the most recent update on June 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2002-1643 actively exploited?
CVE-2002-1643 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2002-1643?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2002-1643, 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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