dbcve.org
Windows 2003 ServerOperating system · Microsoft

CVE-2010-2746

HIGH · 7.6 CVSS v2.0 Published 2010-10-13
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
85/100
Remediation priority · High
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Heap-based buffer overflow in Comctl32.dll (aka the common control library) in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, and R2, and Windows 7, when a third-party SVG viewer is used, allows remote attackers to execute arbitrary code via a crafted HTML document that triggers unspecified messages from this viewer, aka "Comctl32 Heap Overflow Vulnerability."

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

Heap-based buffer overflow vulnerability in the Windows common control library (Comctl32.dll) allows remote code execution when a third-party SVG viewer processes a specially crafted HTML document. The overflow occurs when the SVG viewer triggers unspecified messages to the vulnerable library component.

MitigationApply Microsoft security updates for CVE-2010-2746. Remove or disable untrusted third-party SVG viewers if not required, as the vulnerability is triggered specifically through these components.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Windows 2003 ServerOperating system
Affected:all versions
Windows 7Operating system
Affected:all versions
Windows Server 2003Operating system
Affected:all versions
Windows Server 2008Operating system
Affected:all versions= r2
Windows VistaOperating system
Affected:all versions
Windows XpOperating system
Affected:all versions

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
High
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Check Windows version
    Run 'winver' or 'systeminfo | findstr /B /C:"OS Name" /C:"OS Version"' to identify the Windows version
    Affected if The version is Windows XP, Windows Vista, Windows 7, Windows Server 2003, Windows Server 2008, or Windows Server 2008 R2
  2. Check Comctl32.dll version
    Locate Comctl32.dll (typically in C:\Windows\System32\) and view its Properties > Details > File version, or run 'dir C:\Windows\System32\Comctl32.dll' with file details
    Affected if The DLL version matches the unpatched version for the affected OS (compare against Microsoft security bulletins for CVE-2010-2746)
  3. Identify installed third-party SVG viewers
    Check for SVG viewer software in Programs and Features, or search for common SVG-related applications (e.g., Adobe SVG Viewer, Batik, other third-party SVG plugins) using 'Get-ItemProperty HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall\* | Select-Object DisplayName' or reviewing installed programs
    Affected if Any third-party SVG viewer or plugin is installed and enabled in the browser or system
  4. Check browser add-ons for SVG handlers
    Open Internet Explorer > Manage Add-ons, or check Firefox/Chrome extensions for SVG-handling add-ons, and review any non-Microsoft SVG processing components
    Affected if A third-party SVG handler or viewer add-on is enabled in any web browser
  5. Verify if Comctl32.dll is exposed to untrusted SVG content
    Review whether browsers or applications can process untrusted HTML documents containing embedded SVG, particularly through third-party viewers
    Affected if Users can open untrusted HTML documents that trigger third-party SVG viewers to communicate with Comctl32.dll

The environment is affected if running a vulnerable Windows version (XP, Vista, 7, Server 2003, Server 2008, Server 2008 R2) AND a third-party SVG viewer is installed that can process specially crafted HTML documents with SVG content.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply Microsoft security updates for CVE-2010-2746. Remove or disable untrusted third-party SVG viewers if not required, as the vulnerability is triggered specifically through these components.

Fix this in Windows 2003 Server Scoped from the published advisory
  • Consultation4.0 h
  • Implementation2.0 h
  • Testing3.0 h
  • Review / QA1.0 h
10.0 hours of engineering $1,790
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Scan for this in your stack

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2010-2746 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data