CVE-2004-1561

NONECVSS 0.0Weaponized
0.0
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 78%
CISA-KEV: Not listedEPSS: 78%CVSS: —Exploit: NoneExposed: 0

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

Buffer overflow in Icecast 2.0.1 and earlier allows remote attackers to execute arbitrary code via an HTTP request with a large number of headers.

CVSS v3
—
EG Score
0.0(none)
EPSS
99.5%
KEV
Not listed

Published

December 31, 2004

Last Modified

June 16, 2026

References (18)

Data Freshness Timeline

(refreshed 1× in last 7d / 10× 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. 2026-07-09 08:15 UTCOSV refresh
  2. 2026-07-02 14:00 UTCEPSS rescore
  3. 2026-06-27 03:04 UTCEPSS rescore
  4. 2026-06-23 21:29 UTCEPSS rescore
  5. 2026-06-20 20:42 UTCOSV refresh
  6. 2026-06-17 17:49 UTCEPSS rescore
  7. 2026-06-17 17:49 UTCEPSS rescore
  8. 2026-06-16 17:49 UTCEPSS rescore
  9. 2026-06-16 17:49 UTCEPSS rescore
  10. 2026-06-15 17:43 UTCEPSS rescore
  11. 2026-06-12 23:08 UTCEPSS rescore
  12. 2026-06-11 13:55 UTCEPSS rescore
  13. 2026-06-10 22:13 UTCEPSS rescore
  14. 2026-06-08 14:13 UTCEPSS rescore
  15. 2026-06-07 15:21 UTCEPSS rescore
  16. 2026-06-06 13:44 UTCEPSS rescore
  17. 2026-06-06 13:44 UTCEPSS rescore
  18. 2026-06-06 13:44 UTCEPSS rescore
  19. 2026-06-05 22:43 UTCEPSS rescore
  20. 2026-06-05 22:43 UTCEPSS rescore
  21. 2026-06-04 13:09 UTCEPSS rescore
  22. 2026-06-02 20:10 UTCEPSS rescore
  23. 2026-05-31 22:28 UTCEPSS rescore
  24. 2026-05-31 15:23 UTCEG score recompute
  25. 2026-05-31 15:23 UTCGHSA enrichment
Show 12 more
  1. 2026-05-31 00:13 UTCEPSS rescore
  2. 2026-05-31 00:13 UTCEPSS rescore
  3. 2026-05-28 13:42 UTCEPSS rescore
  4. 2026-05-28 13:42 UTCEPSS rescore
  5. 2026-05-28 13:42 UTCEPSS rescore
  6. 2026-05-27 13:37 UTCEPSS rescore
  7. 2026-05-24 16:42 UTCEPSS rescore
  8. 2026-05-22 21:15 UTCEPSS rescore
  9. 2026-05-22 19:43 UTCOSV refresh
  10. 2026-05-20 22:36 UTCEPSS rescore
  11. 2026-05-18 21:29 UTCEPSS rescore
  12. 2026-05-18 21:29 UTCEPSS rescore

Publicly available exploits

(6 references)

Working exploit code is in the public domain (1 Metasploit module) (2 GitHub PoCs) (3 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCthel1nus/CVE-2004-1561-Notes
    First seen May 28, 2021

    My notes for CVE-2004-1561 IceCast exploitation

    Open source ↗
  • GitHub PoCivanitlearning/CVE-2004-1561
    First seen Mar 27, 2020

    Icecast Header Overwrite buffer overflow RCE < 2.0.1 (Win32)

    Open source ↗
  • Exploit-DBEDB-16763✓ verified
    First seen Apr 30, 2010

    Icecast 2.0.1 (Windows x86) - Header Overwrite (Metasploit)

    Open source ↗
  • Exploit-DBEDB-573✓ verified
    First seen Oct 12, 2004

    Icecast 2.0.1 (Win32) - Remote Code Execution (2)

    Open source ↗
  • Exploit-DBEDB-568✓ verified
    First seen Oct 6, 2004

    Icecast 2.0.1 (Win32) - Remote Code Execution (1)

    Open source ↗
  • Metasploitexploit/windows/http/icecast_header✓ verified
    First seen Sep 28, 2004

    Icecast Header Overwrite

    Open source ↗

Frequently asked(4)

What is CVE-2004-1561?
CVE-2004-1561 is a none vulnerability published on December 31, 2004. Buffer overflow in Icecast 2.0.1 and earlier allows remote attackers to execute arbitrary code via an HTTP request with a large number of headers.
When was CVE-2004-1561 disclosed?
CVE-2004-1561 was first published in the National Vulnerability Database on December 31, 2004, 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-2004-1561 actively exploited?
CVE-2004-1561 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2004-1561?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2004-1561, 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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