CVE-2006-3086
Stack-based buffer overflow in the HrShellOpenWithMonikerDisplayName function in Microsoft Hyperlink Object Library (hlink.dll) allows…
- 9.3HighCVSS base score
- 56.5%Exploitation in 30 daysEPSS · top 0.9% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 1Public exploitsMetasploit, Nuclei and Exploit-DB
Description
Stack-based buffer overflow in the HrShellOpenWithMonikerDisplayName function in Microsoft Hyperlink Object Library (hlink.dll) allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a long hyperlink, as demonstrated using an Excel worksheet with a long link in Unicode, aka "Hyperlink COM Object Buffer Overflow Vulnerability." NOTE: this is a different issue than CVE-2006-3059.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list an Exploit-DB entry for it.
Show the exploits1
Exploit-DB1 entry
- Microsoft Excel - Unicode Local Overflow (PoC) (Exploit-DB entry) (opens in a new tab)
EDB-ID 1927dos, windowspublished 18 Jun 2006Verified
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By mitre
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 | High9.3 | AV:N/AC:M/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 56.5% · top 0.9% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 9.3.
Affected products
n/a
- affected n/a
References
References18
- 20060622 MS Excel Remote Code Execution POC Exploit (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 20060622 RE: MS Excel Remote Code Execution POC Exploit (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 20060623 Re: MS Excel Remote Code Execution POC Exploit (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- VU#394444 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- 20060623 Re: Re: MS Excel Remote Code Execution POC Exploit (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 20060808 TSRT-06-10: Microsoft HLINK.DLL Hyperlink Object Library Buffer Overflow Vulnerability (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- ADV-2006-2431 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- oval:org.mitre.oval:def:999 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- http://blogs.technet.com/msrc/archive/2006/06/20/437826.aspx (opens in a new tab)x_refsource_MISCx_transferred
- 20060622 Re: MS Excel Remote Code Execution POC Exploit (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 26666 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- excel-hlink-bo(27224) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- http://www.tippingpoint.com/security/advisories/TSRT-06-10.html (opens in a new tab)x_refsource_MISCx_transferred
- 20060618 ***ULTRALAME*** Microsoft Excel Unicode Overflow (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- 20748 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- MS06-050 (opens in a new tab)vendor-advisoryx_refsource_MSx_transferred
- 18500 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 1016339 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_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-2006-3083 (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-2006-3086)Record last updated .