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.
CVE-2006-3086
- High exploitation likelihood — EPSS 56%
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 98.9%
- KEV
- Not listed
Published
June 19, 2006
Last Modified
April 16, 2026
References (36)
- cve@mitrehttp://blogs.technet.com/msrc/archive/2006/06/20/437826.aspx
- cve@mitrehttp://marc.info/?l=full-disclosure&m=115067840426070&w=2
- cve@mitrehttp://secunia.com/advisories/20748
- cve@mitrehttp://securitytracker.com/id?1016339
- cve@mitrehttp://www.kb.cert.org/vuls/id/394444
- cve@mitrehttp://www.osvdb.org/26666
- cve@mitrehttp://www.securityfocus.com/archive/1/438057/100/0/threaded
- cve@mitrehttp://www.securityfocus.com/archive/1/438093/100/0/threaded
- cve@mitrehttp://www.securityfocus.com/archive/1/438096/100/0/threaded
- cve@mitrehttp://www.securityfocus.com/archive/1/438156/100/0/threaded
- cve@mitrehttp://www.securityfocus.com/archive/1/438373/100/0/threaded
- cve@mitrehttp://www.securityfocus.com/archive/1/442724/100/0/threaded
- cve@mitrehttp://www.securityfocus.com/bid/18500
- cve@mitrehttp://www.tippingpoint.com/security/advisories/TSRT-06-10.html
- cve@mitrehttp://www.vupen.com/english/advisories/2006/2431
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 2× in last 7d / 21× 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.
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- 2026-05-31 08:05 UTCEG score recompute
- 2026-05-31 08:05 UTCGHSA enrichment
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- 2026-05-18 21:29 UTCEPSS rescore
Publicly available exploits
(1 reference)Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Exploit-DBEDB-1927✓ verifiedFirst seen Jun 18, 2006
Microsoft Excel - Unicode Local Overflow (PoC)
Open source ↗
Related CVEs(same CWE)
Same CWE
10 shownCWE-119
Frequently asked(4)
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Dependency Blast Radius
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