CVE-2017-10734
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 · uneditedIrfanView version 4.44 (32bit) might allow attackers to cause a denial of service or possibly have unspecified other impact via a crafted .rle file, related to an "Invalid Handle starting at wow64!Wow64NotifyDebugger+0x000000000000001d."
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 confidenceA memory corruption vulnerability exists in IrfanView 4.44 (32-bit) when parsing specially crafted RLE image files. The issue manifests as an invalid handle error in the Windows 32-bit on 64-bit (wow64) subsystem, indicating a buffer overflow or out-of-bounds memory access during RLE file processing.
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= 4.44CVSS 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:3.0/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 checksWork through these to decide whether this CVE applies to you.
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Confirm IrfanView is installedCheck for IrfanView in Program Files (x86)\IrfanView or Program Files\IrfanView, or run 'where iview*.exe' from command promptAffected if IrfanView executable exists on the system
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Identify the installed IrfanView versionRight-click irfanview.exe, select Properties, then check the Details tab for Product Version; alternatively run 'irfanview.exe /?' or check the About dialog within the applicationAffected if Version is exactly 4.44
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Confirm the 32-bit architectureCheck if the executable is located in Program Files (x86)\IrfanView (32-bit on 64-bit Windows), or right-click the .exe, go to Compatibility tab, or use a tool like ExeInfoPE to verify it is a 32-bit PE fileAffected if Running the 32-bit version of IrfanView 4.44 on a 64-bit Windows system (wow64)
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Check for RLE file association capabilityOpen IrfanView and attempt to open a .rle file, or check File > Open dialog for RLE format support, or look for rle.dll plugin in the IrfanView plugins folderAffected if RLE file format support is enabled and the application can process RLE images
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Look for crash indicators related to RLE processingCheck Windows Event Viewer under Application logs for IrfanView crash events, or search for crash dump files in %LOCALAPPDATA%\IrfanView or near the IrfanView folder, especially if triggered by opening image filesAffected if Recent crashes or errors occur when opening RLE image files
You are affected if IrfanView 4.44 (32-bit) is installed and RLE image files can be processed, especially on a 64-bit Windows system using the wow64 subsystem.
Generated from the published advisory. Verify against your own configuration.
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 dataUpgrade IrfanView to the latest version. If upgrade is not immediately possible, restrict acceptance of RLE files from untrusted sources and monitor for crashes.
- Consultation2.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,984.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-10734 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2017-10734 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- 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
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