What is CVE-2006-4868?

CVE-2006-4868 is a vulnerability in Microsoft Internet Explorer, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. Published 2006-09-19.

Is CVE-2006-4868 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Microsoft Internet Explorer

CVE-2006-4868

Stack-based buffer overflow in the Vector Graphics Rendering engine (vgx.dll), as used in Microsoft Outlook and Internet Explorer 6.0 on Windows XP SP2, and possibly other versions, allows remote attackers to execute arbitrary code via a Vector Markup Language (VML) file with a long fill parameter within a rect tag.

Vulnerability class: Buffer Overflow

Published 2006-09-19 · last modified 2026-06-16.

CVSS v2 metric

CVSS v2 base score 9.3 (High). Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.614 (99.2th percentile), scored 2026-10-18.

High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.614 · newest: 0.614 · change: 0.000

Affected products

Microsoft Internet Explorer — versions 6.0, 5.0.1
Microsoft Outlook — versions 2003
Microsoft Windows 2000
Microsoft Windows 2003 Server
Microsoft Windows Xp

Weakness classification (CWE)

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

Public proof-of-concept exploits

References

blogs.securiteam.com/index.php/archives/624
www.securityfocus.com/archive/1/446881/100/200/threaded (mailing-list)
www.securityfocus.com/bid/20096 (Exploit, Patch, vdb-entry)
www.securityfocus.com/archive/1/446523/100/0/threaded (mailing-list)
www.securityfocus.com/archive/1/446505/100/0/threaded (mailing-list)
www.vupen.com/english/advisories/2006/3679 (vdb-entry, Vendor Advisory)
www.kb.cert.org/vuls/id/416092 (US Government Resource, third-party-advisory)
www.microsoft.com/technet/security/advisory/925568.mspx (Patch, Vendor Advisory)
support.microsoft.com/kb/925486 (vendor-advisory)
secunia.com/advisories/21989 (Patch, Vendor Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2006-4868?: CVE-2006-4868 is a vulnerability in Microsoft Internet Explorer, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. Published 2006-09-19.
Is CVE-2006-4868 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.