CVE-2023-23512
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 handling of caches. This issue is fixed in watchOS 9.3, tvOS 16.3, macOS Ventura 13.2, iOS 16.3 and iPadOS 16.3. Visiting a website may lead to an app denial-of-service.
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 exists in Apple operating systems due to improper cache handling. When a user visits a maliciously crafted website, it triggers the vulnerability causing the associated app to become unresponsive or crash.
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< 16.3< 16.3>= 13.0, < 13.2< 16.3< 9.3CVSS 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
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:N/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.
-
Check iOS version on iPhoneGo to Settings > General > About on the iPhone device and note the version numberAffected if Version is less than 16.3
-
Check iPadOS version on iPadGo to Settings > General > About on the iPad device and note the version numberAffected if Version is less than 16.3
-
Check macOS versionClick the Apple menu > About This Mac and note the version number under macOSAffected if Version is 13.0 through 13.1 (Ventura)
-
Check tvOS versionGo to Settings > General > About TV on the Apple TV device and note the version numberAffected if Version is less than 16.3
-
Check watchOS versionOpen the Watch app on paired iPhone, go to My Watch > General > About and note the versionAffected if Version is less than 9.3
The device is affected if it runs any iOS/iPadOS, macOS Ventura, tvOS, or watchOS version below the fixed releases (16.3 for iOS/iPadOS/tvOS, 13.2 for macOS, 9.3 for watchOS).
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 · scoped9.313.216.3
Apply the available security updates: watchOS 9.3, tvOS 16.3, macOS Ventura 13.2, iOS 16.3, and iPadOS 16.3. This is a patching-only remediation; no code changes are required.
iOS 16.3, iPadOS 16.3, macOS Ventura 13.2, tvOS 16.3, or watchOS 9.3 (depending on device type)
- For iOS/iPadOS: Open Settings > General > Software Update, then download and install iOS 16.3 or iPadOS 16.3
- For macOS: Open System Settings (or System Preferences) > General > Software Update, then download and install macOS Ventura 13.2
- For tvOS: Open Settings > System > Software Updates, then select Update Software and install tvOS 16.3
- For watchOS: Open the Watch app on paired iPhone > My Watch tab > General > Software Update, then install watchOS 9.3
- After updating, restart the device to ensure the security fix is fully applied
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation1.0 h
- Implementation2.0 h
- Testing1.0 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 $1,424.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-23512 — 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-2023-23512 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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