CVE-2023-27967
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 memory handling. This issue is fixed in Xcode 14.3. An app may be able to execute arbitrary code out of its sandbox or with certain elevated privileges.
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 memory handling vulnerability in Xcode allows a malicious app to execute arbitrary code outside its sandbox or with elevated privileges. This could be exploited during the build process or through specially crafted project files.
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< 14.3CVSS 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
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/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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Check installed Xcode versionOpen Xcode, go to Xcode > About Xcode, or run 'xcodebuild -version' in TerminalAffected if Version shown is earlier than 14.3 (e.g., 14.2, 14.1, 14.0, or any 13.x)
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Verify Xcode build tools versionRun 'xcode-select -p' to find Xcode path, then check the version metadata inside the Xcode.app bundle or use 'xcodebuild -version'Affected if The reported version is below 14.3
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Identify all Xcode installations on the systemCheck /Applications folder for Xcode.app versions, and check Command Line Tools with 'xcodebuild -version' after selecting different toolchains using 'sudo xcode-select -s /Path/To/Xcode.app'Affected if Any Xcode installation is found with version < 14.3
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Review Xcode usage in CI/CD or build pipelinesInspect build scripts, CI configuration files (e.g., .yml, .sh), or container images for references to Xcode versionsAffected if Build configurations specify or default to Xcode versions below 14.3
You are affected if any Xcode installation in your environment is version 14.2 or earlier, as the memory handling vulnerability exists in those versions and could be triggered during the build process or when opening specially crafted project files.
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 · scoped14.3
Update Xcode to version 14.3 or later to obtain the patched version with improved memory handling.
Xcode 14.3
- 1. Open the Mac App Store or visit developer.apple.com/download
- 2. Search for Xcode 14.3 or locate the download in your Apple Developer account
- 3. Download and install Xcode 14.3
- 4. After installation, open Xcode and go to Xcode > Preferences > Locations to verify the Command Line Tools are pointing to the new version
- 5. Clean and rebuild any affected projects using the new Xcode version
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation2.0 h
- Testing4.0 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 $2,464.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-27967 — 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-2023-27967 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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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.
- 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