CVE-2015-5672
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 · uneditedTYPE-MOON Fate/stay night, Fate/hollow ataraxia, Witch on the Holy Night, and Fate/stay night + hollow ataraxia set allow remote attackers to execute arbitrary OS commands via crafted saved data.
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 confidenceThis is a command injection vulnerability in multiple TYPE-MOON visual novels (Fate/stay night, Fate/hollow ataraxia, Witch on the Holy Night). Attackers can execute arbitrary OS commands by crafting malicious save data files that are loaded by the vulnerable games.
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 dataall versionsall versionsall versionsall versionsCVSS 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
- Low
- Authentication
- None
- Confidentiality
- Complete
- Integrity
- Complete
- Availability
- Complete
AV:N/AC:L/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 checksWork through these to decide whether this CVE applies to you.
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Identify installed TYPE-MOON visual novelsCheck your system for installation directories or registry entries related to Fate/stay night, Fate/hollow ataraxia, or Witch on the Holy Night. Look for game executables from these titles.Affected if Any of the affected games are installed on the system
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Locate save data filesSearch for save files associated with these visual novels. Save files are typically stored in user directories or game-specific folders and may have extensions like .dat, .sav, or game-specific formats.Affected if Save files exist for any of the affected games
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Verify game can load external save dataConfirm that the installed game has functionality to load save data from user-accessible locations. This is the code path that processes the vulnerable save data.Affected if The game loading functionality is present and accessible to users
Any system with Fate/stay night, Fate/hollow ataraxia, or Witch on the Holy Night installed is affected, as all versions contain the command injection vulnerability in save data loading.
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 dataImplement strict input validation and sanitization on all save data before processing. Avoid using user-controlled save data in any system calls or shell commands. Use parameterized functions or whitelist approaches for any file operations.
- Consultation6.0 h
- Implementation12.0 h
- Testing8.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2015-5672 — 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-2015-5672 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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