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MrsidApplication · Extensis

CVE-2013-3944

HIGH · 7.8 CVSS v3.1 Published 2020-01-02
Fix available
A fix is available. Upgrade to 4.37 or later.
See remediation →
81/100
Remediation priority · High
No privileges

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
Stack-based buffer overflow in the MrSID plugin (MrSID.dll) before 4.37 for IrfanView allows remote attackers to execute arbitrary code via an IMAGE tag.

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 · moderate confidence

Stack-based buffer overflow in the MrSID image codec plugin (MrSID.dll) for IrfanView allows remote attackers to execute arbitrary code via a specially crafted IMAGE tag in content, exploiting the lack of proper bounds checking when processing MrSID (.sid) image files.

MitigationUpdate MrSID plugin to version 4.37 or later. Avoid opening untrusted .sid image files in IrfanView and consider disabling the MrSID plugin if not required.

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
MrsidApplication
Affected:< 4.37

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
Local
Complexity
Low
Privileges
None
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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. Locate MrSID plugin file
    Navigate to the IrfanView plugins directory (typically C:\Program Files\IrfanView\Plugins or C:\Program Files (x86)\IrfanView\Plugins) and locate MrSID.dll
    Affected if MrSID.dll file is present in the IrfanView plugins folder
  2. Get MrSID.dll file version
    Right-click on MrSID.dll, select Properties, then go to the Details tab to view the File Version. Alternatively, use PowerShell: (Get-Item 'C:\Program Files\IrfanView\Plugins\MrSID.dll').VersionInfo.FileVersion
    Affected if The file exists and returns a version number
  3. Compare version to affected range
    Compare the obtained file version number to version 4.37. Note that file version format may differ from product version - check if it is numerically less than 4.37
    Affected if The MrSID plugin version is below 4.37 (for example, 4.1, 3.x, etc.)
  4. Verify plugin is enabled in IrfanView
    Open IrfanView, go to menu: Options -> Properties/Settings -> Plugins. Check if the MrSID plugin is listed as loaded/enabled
    Affected if The MrSID plugin shows as enabled/loaded in the IrfanView plugins list

A user is affected if IrfanView has the MrSID.dll plugin installed with a version lower than 4.37 and the plugin is enabled for loading.

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
Upgrade available Upgrade to 4.37 or later
Fixed in 4.37
Interim mitigation

Update MrSID plugin to version 4.37 or later. Avoid opening untrusted .sid image files in IrfanView and consider disabling the MrSID plugin if not required.

Fix this in Mrsid Scoped from the published advisory
  • Consultation2.0 h
  • Implementation1.0 h
  • Testing2.0 h
  • Review / QA1.0 h
6.0 hours of engineering $1,060
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,696.

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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-2013-3944 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