CVE-2025-43375
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 · uneditedThe issue was addressed with improved checks. This issue is fixed in Xcode 26. Processing an overly large path value may crash a process.
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 confidenceA denial-of-service vulnerability in Xcode 26 where processing an excessively large path value causes a process crash due to insufficient input validation in path handling code.
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< 26.0CVSS 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
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/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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Check if Xcode is installedRun 'xcode-select -p' to confirm Xcode command line tools are configured, or look for Xcode.app in /ApplicationsAffected if No Xcode installation found means this CVE does not apply
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Determine installed Xcode versionRun 'xcodebuild -version' to output the installed Xcode version numberAffected if Cannot determine version - further investigation needed
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Compare version against affected rangeCompare the installed version number to 26.0 - any version lower than 26.0 is in the affected rangeAffected if Installed version is below 26.0 (for example 25.x, 24.x, etc.)
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Assess path handling usageThis vulnerability triggers when Xcode processes excessively large file path values - determine if your project or build environment involves long directory paths or deep nested folder structuresAffected if You work with projects having unusually long file paths and use an affected Xcode version
Your environment is affected if you have Xcode installed with a version lower than 26.0 and your project involves processing large path values that could trigger the crash.
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.
dbcve · scoped26.0
Upgrade to Xcode 26 (latest point release) which includes improved checks to validate path lengths before processing.
Xcode 26.0
- Download Xcode 26.0 or later from the Mac App Store or Apple Developer portal
- Install Xcode 26.0 by dragging the application to your Applications folder
- Close any running instances of older Xcode versions
- Open Xcode 26.0 and verify the installation was successful
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation1.0 h
- Implementation1.0 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 $1,376.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-43375 — 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-2025-43375 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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