XnviewApplication

CVE-2017-10776

HIGH · 7.8 CVSS v3.0 Published 2017-07-05
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
80/100
Remediation priority · High
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
XnView 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 a "Read Access Violation starting at ntdll_77df0000!LdrShutdownProcess+0x0000000000000130."

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

A memory corruption vulnerability in XnView Classic 2.40 when parsing crafted RLE (Run-Length Encoding) image files triggers a read access violation in Windows' ntdll.dll, potentially causing denial of service or unspecified impact. The vulnerability stems from improper bounds checking during RLE file parsing.

MitigationAvoid opening untrusted or unverified .rle files in XnView Classic. Upgrade to a patched version of XnView if available, or consider alternative image viewers with active security support.

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
XnviewApplication
Affected:= 2.40

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
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 checks

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

  1. Confirm XnView Classic installation
    Check for XnView Classic in the program files directory (typically C:\Program Files\XnView or C:\Program Files (x86)\XnView) or search for xnview.exe on the system
    Affected if XnView Classic executable is found on the system
  2. Verify installed version
    Right-click on xnview.exe, select Properties, then view the Details tab to find the File Version, or run 'xnview.exe -?' from command line
    Affected if The version reported is exactly 2.40
  3. Identify RLE file handling capability
    Attempt to open a legitimate .rle file in XnView Classic, or check the supported formats in XnView's Options > File Formats
    Affected if RLE format is listed as supported or the software can open .rle files
  4. Check for exposure to untrusted RLE files
    Review whether the system or its users process RLE files from untrusted or external sources, or check file associations for .rle extension
    Affected if Users can open RLE files from unknown or unverified sources

A user is affected if XnView Classic version 2.40 is installed and can be used to open RLE image files, since the vulnerability triggers during RLE parsing without requiring special configuration.

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

Avoid opening untrusted or unverified .rle files in XnView Classic. Upgrade to a patched version of XnView if available, or consider alternative image viewers with active security support.

Fix this in Xnview Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA2.0 h
11.0 hours of engineering $1,930
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Scan for this in your stack

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dbcve dependency scanner

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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-2017-10776 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