CVE-2005-4085

NONECVSS 0.0Weaponized

0.0

Buffer overflow in BlueCoat (a) WinProxy before 6.1a and (b) the web console access functionality in ProxyAV before 2.4.2.3 allows remote attackers to execute arbitrary code via a long Host: header.

CVSS v3: —
EG Score: —
EPSS: 99.0%
KEV: Not listed

Published

December 31, 2005

Last Modified

April 16, 2026

References (16)

cve@mitrehttp://secunia.com/advisories/18288
cve@mitrehttp://secunia.com/advisories/18909
cve@mitrehttp://securitytracker.com/id?1015441
cve@mitrehttp://www.bluecoat.com/support/knowledge/advisory_host_header_stack_overflow.html
cve@mitrehttp://www.idefense.com/intelligence/vulnerabilities/display.php?id=364
cve@mitrehttp://www.securityfocus.com/bid/16147
cve@mitrehttp://www.vupen.com/english/advisories/2006/0065
cve@mitrehttp://www.vupen.com/english/advisories/2006/0622
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/18288
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/18909
af854a3a-2127-422b-91ae-364da2661108http://securitytracker.com/id?1015441
af854a3a-2127-422b-91ae-364da2661108http://www.bluecoat.com/support/knowledge/advisory_host_header_stack_overflow.html
af854a3a-2127-422b-91ae-364da2661108http://www.idefense.com/intelligence/vulnerabilities/display.php?id=364
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/16147
af854a3a-2127-422b-91ae-364da2661108http://www.vupen.com/english/advisories/2006/0065

Data Freshness Timeline

(refreshed 8× in last 7d / 11× 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.

2026-05-29 13:40 UTCepss_batch
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
2026-05-26 07:16 UTCepss_batch
2026-05-26 07:16 UTCepss_batch
2026-05-22 21:15 UTCepss_batch
2026-05-20 22:36 UTCepss_batch
2026-05-20 22:36 UTCepss_batch
2026-05-18 21:29 UTCepss_batch

Publicly available exploits

(3 references)

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

Exploit-DBEDB-16691✓ verified
First seen Jul 12, 2010
Blue Coat WinProxy - Host Header Overflow (Metasploit)
Open source ↗
Exploit-DBEDB-1408✓ verified
First seen Jan 7, 2006
BlueCoat WinProxy 6.0 R1c - 'Host' Remote Stack Overflow (SEH)
Open source ↗
Metasploitexploit/windows/proxy/bluecoat_winproxy_host✓ verified
First seen Jan 5, 2005
Blue Coat WinProxy Host Header Overflow
Open source ↗

Frequently asked(4)

What is CVE-2005-4085?

CVE-2005-4085 is a none vulnerability published on December 31, 2005. Buffer overflow in BlueCoat (a) WinProxy before 6.1a and (b) the web console access functionality in ProxyAV before 2.4.2.3 allows remote attackers to execute arbitrary code via a long Host: header.

When was CVE-2005-4085 disclosed?

CVE-2005-4085 was first published in the National Vulnerability Database on December 31, 2005, with the most recent update on April 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2005-4085 actively exploited?

CVE-2005-4085 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-2005-4085?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2005-4085, 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-2005-4085

📅 Published

🔄 Last Modified

🔗 References (16)