HOMEVULNERABILITIESCVE-2005-3666
CRITICAL

CVE-2005-3666

NVD-CWE-OtherPublished: November 18, 2005· Updated: Jun 16, 2026

10.0
CVSS v3.1

Official Description

Multiple unspecified format string vulnerabilities in multiple unspecified implementations of Internet Key Exchange version 1 (IKEv1) have multiple unspecified attack vectors and impacts, as demonstrated by the PROTOS ISAKMP Test Suite for IKEv1. NOTE: due to the lack of information in the original sources, it is likely that this candidate will be REJECTed once it is known which implementations are actually vulnerable.

NVD Source

Technical Analysis

CVE-2005-3666 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityC
IntegrityC
AvailabilityC
AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected Vendors & Products

internet_key_exchange1 product(s)
internet key exchange
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://www.kb.cert.org/vuls/id/226364
ADVISORYhttp://www.niscc.gov.uk/niscc/docs/br-20051114-01013.html?lang=en
ADVISORYhttp://www.kb.cert.org/vuls/id/226364
ADVISORYhttp://www.niscc.gov.uk/niscc/docs/br-20051114-01013.html?lang=en

All References (8)

→
http://jvn.jp/niscc/NISCC-273756/index.html
→
http://www.ee.oulu.fi/research/ouspg/protos/testing/c09/isakmp/
→
http://www.kb.cert.org/vuls/id/226364Third Party Advisory · US Government Resource
→
http://www.niscc.gov.uk/niscc/docs/br-20051114-01013.html?lang=enVendor Advisory
→
http://jvn.jp/niscc/NISCC-273756/index.html
→
http://www.ee.oulu.fi/research/ouspg/protos/testing/c09/isakmp/
→
http://www.kb.cert.org/vuls/id/226364Third Party Advisory · US Government Resource
→
http://www.niscc.gov.uk/niscc/docs/br-20051114-01013.html?lang=enVendor Advisory

Quick Facts

CVE IDCVE-2005-3666
CVSS Score10.0 / 10
SeverityCRITICAL
WeaknessNVD-CWE-Other
CISA KEVNo
Affected1 vendor(s)
PublishedNov 18, 2005

Related CVEs (NVD-CWE-Other)

CVE-2006-6355
10.0
CVE-2003-0509
10.0
CVE-2022-4390
10.0
CVE-2006-1123
10.0
CVE-2007-1015
10.0
CVE-2007-2810
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2005-3666 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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