CVE-2019-8598
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 · uneditedAn input validation issue was addressed with improved input validation. This issue is fixed in iOS 12.3, macOS Mojave 10.14.5, tvOS 12.3, watchOS 5.2.1, iTunes for Windows 12.9.5, iCloud for Windows 7.12. A malicious application may be able to read restricted memory.
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 · high confidenceInput validation vulnerability in multiple Apple operating systems (iOS, macOS, tvOS, watchOS) and Windows software (iTunes, iCloud for Windows) that allowed a malicious application to read restricted memory due to insufficient input validation checks.
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< 7.12< 12.9.5< 12.3< 10.14.5< 12.3< 5.2.1CVSS 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
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
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 the installed Apple productDetermine which Apple software is in use: macOS (desktop/laptop), iOS (iPhone/iPad), tvOS (Apple TV), watchOS (Apple Watch), iTunes for Windows, or iCloud for WindowsAffected if Any of these products are installed on the system
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Check the installed version against affected rangesFor macOS: Apple menu > About This Mac. For iOS: Settings > General > About. For tvOS: Settings > General > About. For watchOS: Open the Watch app on iPhone > General > About. For iTunes (Windows): Help > Check for Updates or open iTunes and go to Help > About iTunes. For iCloud (Windows): Open iCloud > click the gear icon > About iCloudAffected if The version is below: iOS 12.3, macOS 10.14.5, tvOS 12.3, watchOS 5.2.1, iTunes 12.9.5, or iCloud 7.12
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Verify if the product is exposed to untrusted applicationsFor iOS/macOS: Check if the device allows installation of apps from untrusted sources ( sideloading). For Windows: Determine if standard user accounts can run untrusted executables. Review application execution policies and sandboxing settings.Affected if The product runs applications from untrusted developers, or the system has weak application execution controls, making it possible for a malicious app to trigger the vulnerability
User is affected if any Apple product (iOS, macOS, tvOS, watchOS, iTunes for Windows, or iCloud for Windows) is installed with a version lower than the fixed releases (iOS 12.3, macOS 10.14.5, tvOS 12.3, watchOS 5.2.1, iTunes 12.9.5, iCloud 7.12).
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 data5.2.17.1210.14.5
Apply the available security updates (iOS 12.3, macOS Mojave 10.14.5, tvOS 12.3, watchOS 5.2.1, iTunes 12.9.5 for Windows, iCloud Windows 7.12) to address the input validation flaw.
- Consultation2.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-8598 — 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-2019-8598 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