Which products and versions are affected by CVE-2006-3086?

Affected: Hyperlink Object Library (Microsoft). The full list is in the CVE brief.

Is CVE-2006-3086 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2006-3086 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2006-3086?

Public exploit code is available.

Is there a fix for CVE-2006-3086?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2006-3086 be patched?

Brandefense priority: patch immediately, because it is very likely to be exploited soon.

Request A Demo

Vulnerability Intelligence

CVE-2006-3086

CriticalPublic exploit

Published Jun 19, 2006 · Updated Apr 15, 2026

Key Facts

Patch immediately

CVE-2006-3086 is a critical-severity vulnerability (CVSS 9.3 v2) affecting Hyperlink Object Library (Microsoft).
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 56% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v2

9.3

AV:N/AC:M/Au:N/C:C/I:C/A:C

EPSS (30-day exploit likelihood)

56%

Higher than 99.0% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2006-3086 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

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.

Affected Products

1 affected entries in total

Product	Affected versions	Fixed in
Hyperlink Object LibraryMicrosoft	See advisory	n/a

Timeline

Publicly disclosed
Jun 19, 2006
Last updated
Apr 15, 2026

Weakness Type

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

patch20748
patch1016339
patchhttp://www.tippingpoint.com/security/advisories/TSRT-06-10.html
exploitExploitDB-1927
exploit18500

14 more references in the full CVE brief

FAQ

Common Questions.

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, ak…
Affected: Hyperlink Object Library (Microsoft). The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

Is CVE-2006-3086 Running On Your Attack Surface?

Brandefense maps vulnerabilities like this one to your internet-facing assets and tells you exactly where to patch.