CVE-2017-10761
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 · uneditedXnView Classic for Windows Version 2.40 might allow attackers to cause a denial of service or possibly have unspecified other impact via a crafted .rle file, related to "Data from Faulting Address controls Branch Selection starting at ntdll_77df0000!RtlpAllocateHeap+0x0000000000000429."
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 confidenceHeap corruption vulnerability in XnView Classic v2.40 when parsing crafted RLE image files. The vulnerability occurs at ntdll!RtlpAllocateHeap due to improper bounds checking during RLE file parsing, allowing attackers to potentially achieve code execution or cause denial of service.
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= 2.40CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/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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Verify XnView installationSearch for xnview.exe on the system using file search or check common installation directories such as C:\Program Files\XnView or C:\Program Files (x86)\XnViewAffected if XnView is present on the system
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Determine installed XnView versionRight-click on xnview.exe, select Properties, then view the Details tab to see the File Version. Alternatively, run xnview.exe and check Help > AboutAffected if The installed version is exactly 2.40
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Check for RLE file association or recent RLE processingReview recent file opens in XnView or check if .rle file extension is associated with XnView via registry under HKCR\.rle or by inspecting recent file history within XnView if availableAffected if RLE file handling is enabled or .rle files have been opened in XnView
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Inspect XnView parsing modulesCheck the XnView installation directory for RLE-related DLLs or plugins (look in the plugins or formats subfolder if they exist)Affected if RLE parsing modules are present and loaded by the application
A user is affected if XnView Classic version 2.40 is installed and RLE image files can be parsed or opened within the application.
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 dataAvoid opening untrusted .rle files in XnView until vendor patch is available. Consider upgrading XnView to a version that addresses this vulnerability or implementing file type restrictions at the enterprise level.
- Consultation2.0 h
- Implementation1.0 h
- Testing3.0 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 $1,936.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-10761 — 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-2017-10761 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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