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CVE-2006-3869
Heap-based buffer overflow in URLMON.DLL in Microsoft Internet Explorer 6 SP1 on Windows 2000 and XP SP1, with versions the MS06-042 patch…
- 7.5HighCVSS base score
- 43.7%Exploitation in 30 daysEPSS · top 1.2% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Heap-based buffer overflow in URLMON.DLL in Microsoft Internet Explorer 6 SP1 on Windows 2000 and XP SP1, with versions the MS06-042 patch before 20060824, allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a long URL on a website that uses HTTP 1.1 compression.
Timeline
ID reserved
By microsoft
- 28 days later
· 28 days later
Published
- 18 years later
· 18 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 43.7% · top 1.2% of all CVEs (11 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
n/a
- affected n/a
References
15
- ie-url-compression-bo(28893) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 19667 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 1016731 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 28132 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- http://www.microsoft.com/technet/security/advisory/923762.mspx (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://support.microsoft.com/kb/923762/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- 21557 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://www.nsfocus.com/english/homepage/research/0608.htm (opens in a new tab)x_refsource_MISCx_transferred
- 20060824 EEYE: Internet Explorer Compressed Content URL Heap Overflow Vulnerability (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- VU#821156 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- ADV-2006-3356 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 1441 (opens in a new tab)third-party-advisoryx_refsource_SREASONx_transferred
- 20060825 NSFOCUS SA2006-08 : Microsoft IE6 urlmon.dll Long URL Buffer Overflow Vulnerability (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 20060822 EEYE:ALERT: MS06-042 Related Internet Explorer 'Crash' is Exploitable (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- ie-long-url-bo(28522) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2006-3863 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2006-3869)Record last updated .