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CVE-2026-39874: A malicious app may be able to gain root privileges in Apple macOS

0
High
VulnerabilityCVE-2026-39874cvecve-2026-39874
Published: 07/27/2026 (07/27/2026, 20:13:52 UTC)
Source: CVE Database V5
Vendor/Project: Apple
Product: macOS

Description

A permissions issue was addressed with additional restrictions. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. A malicious app may be able to gain root privileges.

CVSS v3.1

Score 7.8high

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected software

Apple

macOS

Affected versions
>=0 <14.8.8>=0 <15.7.8>=0 <26.6

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 07/30/2026, 00:15:00 UTC

Technical Analysis

This vulnerability involves a permissions issue in macOS that could be exploited by a malicious app to escalate privileges to root. Apple fixed the issue by implementing additional restrictions in specific macOS versions: Sequoia 15.7.8, Sonoma 14.8.8, and Tahoe 26.6. The CVSS score is 7.8, indicating a high severity with local attack vector, low attack complexity, requiring low privileges but no user interaction, and impacts confidentiality, integrity, and availability.

Potential Impact

A successful exploit allows a malicious application to gain root privileges on the affected macOS system, potentially leading to full system compromise including unauthorized access, modification, or disruption of system resources.

Mitigation Recommendations

Apply the official patches by upgrading to macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, or macOS Tahoe 26.6 where this vulnerability is fixed. No other mitigation or temporary workaround is indicated in the available data.

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Technical Details

Data Version
5.2
Assigner Short Name
apple
Date Reserved
2026-04-07T19:58:20.173Z
State
PUBLISHED

Threat ID: 6a67c1b29c2644c7f8cb0db1

Added to database: 07/27/2026, 20:38:10 UTC

Last enriched: 07/30/2026, 00:15:00 UTC

Last updated: 09/10/2026, 20:02:09 UTC

Views: 39

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