dbcve.org
Mac Os XOperating system · Apple

CVE-2019-8561

HIGH · 7.8 CVSS v3.1 Published 2019-12-18
Fix available
A fix is available. Upgrade to 10.14.4 or later.
See remediation →
81/100
Remediation priority · High
No privileges

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 · unedited
A logic issue was addressed with improved validation. This issue is fixed in macOS Mojave 10.14.4. A malicious application may be able to elevate 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 confidence

A logic validation flaw in macOS Mojave allowed a malicious local application to elevate privileges to higher integrity levels. The vulnerability was addressed through improved input validation in the affected component.

MitigationApply the macOS Mojave 10.14.4 security update or later to patch the vulnerability. For unpatchable systems, restrict local application execution through MDM policies or application whitelisting.

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
Mac Os XOperating system
Affected:< 10.14.4

CVSS 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
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/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 checks

Work through these to decide whether this CVE applies to you.

  1. Determine installed macOS version
    Open Terminal and run 'sw_vers' to display the macOS version (e.g., 10.14.3)
    Affected if The version shown is below 10.14.4 (such as 10.14, 10.14.1, 10.14.2, or 10.14.3)
  2. Check detailed system information
    Run 'system_profiler SPSoftwareDataType' in Terminal to view the full version string including build number
    Affected if The system software version is earlier than the 10.14.4 security update

The system is affected if it runs any version of macOS Mojave earlier than 10.14.4, since the vulnerability exists in the unpatched input validation logic.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Upgrade available Upgrade to 10.14.4 or later
Fixed in 10.14.4
Interim mitigation

Apply the macOS Mojave 10.14.4 security update or later to patch the vulnerability. For unpatchable systems, restrict local application execution through MDM policies or application whitelisting.

Fix this in Mac Os X Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing2.0 h
  • Review / QA1.0 h
9.0 hours of engineering $1,600
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,560.

Scan for this in your stack

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2019-8561 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
  • 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