Which products and versions are affected by CVE-2006-1189?

Affected: Internet Explorer (Microsoft) versions 5.01, 5.1, 5.5, 6.0. The full list is in the CVE brief.

Is CVE-2006-1189 being exploited in the wild?

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

Is CVE-2006-1189 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-2006-1189?

Public exploit code is available.

Is there a fix for CVE-2006-1189?

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

How urgently should CVE-2006-1189 be patched?

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

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Vulnerability Intelligence

CVE-2006-1189

CriticalPublic exploit

Buffer overflow in URLMON.DLL in Microsoft Internet Explorer 5.01 through 6 allows remote attackers to execute arbitrary code via a crafted URL with an International Domain Name (IDN) using double-byte character sets (DBCS), aka the "Double Byte Character Parsing Memory…

Published Apr 11, 2006 · Updated Apr 15, 2026

Key Facts

Patch immediately

CVE-2006-1189 is a critical-severity vulnerability (CVSS 10.0 v2) affecting Internet Explorer (Microsoft).
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 62% 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

10.0

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

EPSS (30-day exploit likelihood)

62%

Higher than 99.1% 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-2006-1189 brief as a PDF

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

Description

Affected Products

4 affected entries in total

Product	Affected versions	Fixed in
Internet ExplorerMicrosoft	5.01, 5.1, 5.5, 6.0	n/a

Timeline

Publicly disclosed
Apr 11, 2006
Last updated
Apr 15, 2026

Weakness Type

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

References

advisory18957
advisoryADV-2006-1318
exploitExploitDB-1838
other20060411 Microsoft Internet Explorer DBCS Remote Memory Corruption Vulnerability
otherMS06-013

8 more references in the full CVE brief

FAQ

Common Questions.

Buffer overflow in URLMON.DLL in Microsoft Internet Explorer 5.01 through 6 allows remote attackers to execute arbitrary code via a crafted URL with an International Domain Name (IDN) using double-byte character sets (DBCS), aka the "Double Byte Character Parsing Memory Corruption Vulnerability."
Affected: Internet Explorer (Microsoft) versions 5.01, 5.1, 5.5, 6.0. 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-2006-1189 Running On Your Attack Surface?

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