CVE-2025-43317: Apple iPadOS Privilege Escalation Vulnerability

CVE-2025-43317 Overview

CVE-2025-43317 is a permissions weakness affecting multiple Apple operating systems. Apple addressed the issue by applying additional access restrictions. An app running locally on an affected device may be able to access sensitive user data that should otherwise be protected by the operating system's permission model. The flaw is categorized under CWE-284: Improper Access Control and requires local access with user interaction to trigger. Apple shipped fixes across its 26-generation platforms, including iOS 26, iPadOS 26, macOS Tahoe 26, tvOS 26, visionOS 26, and watchOS 26.

Critical Impact
A malicious or compromised application installed on an affected Apple device may bypass permission checks and read sensitive user data without proper authorization.

Affected Products

Apple iOS and iPadOS (prior to version 26)
Apple macOS (prior to macOS Tahoe 26)
Apple tvOS, visionOS, and watchOS (prior to version 26)

Discovery Timeline

2025-09-15 - CVE-2025-43317 published to the National Vulnerability Database (NVD)
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-43317

Vulnerability Analysis

CVE-2025-43317 stems from an improper access control condition within Apple's platform permission enforcement. Apple's advisory notes the issue was addressed by adding further restrictions, indicating that the original permission checks were insufficient to fully constrain what an application could reach. The vulnerability allows a locally installed application to access sensitive user data that the operating system's sandbox and entitlement model would normally block.

Exploitation requires local execution context and user interaction, such as launching or granting a prompt to a malicious app. The confidentiality impact is high, while integrity and availability remain unaffected. This aligns with a data-disclosure primitive rather than a code execution or privilege escalation path.

Apple has not disclosed the specific subsystem or entitlement involved. Practitioners should treat the flaw as a broad platform-level access control gap that Apple resolved with tighter permission enforcement across all six operating systems in the 26 release cycle.

Root Cause

The root cause is an CWE-284 improper access control condition. A permissions check within an Apple platform component did not fully enforce the intended restrictions on which processes could reach protected user data. Apple's fix introduces additional restrictions to close the gap.

Attack Vector

An attacker must deliver a malicious application to the target device, typically via the App Store, TestFlight, sideloading on macOS, or a supply-chain compromise of a legitimate app. Once the app runs and the user interacts with it, the app can invoke the affected component to read data that the permission model should have protected. Detailed exploitation code is not publicly available. See the Apple Support Document #125108 and the Full Disclosure Mailing List post #53 for vendor and community references.

Detection Methods for CVE-2025-43317

Indicators of Compromise

Applications reading from user data locations such as ~/Library/, Photos, Contacts, or Calendar databases without holding the expected entitlements or user-granted permissions.
Unexpected access to Transparency, Consent, and Control (TCC) protected resources by unsigned or newly installed applications.
Apps invoking private or undocumented APIs shortly after install or first launch.

Detection Strategies

Monitor macOS Endpoint Security events (ES_EVENT_TYPE_NOTIFY_OPEN, ES_EVENT_TYPE_NOTIFY_STAT) for third-party apps touching sensitive user data stores.
Correlate application install events with subsequent access to TCC.db or protected directories to flag anomalous permission escalations.
Review MDM telemetry for devices still running pre-26 iOS, iPadOS, macOS, tvOS, visionOS, or watchOS builds.

Monitoring Recommendations

Baseline normal app-to-resource access patterns per device and alert on deviations affecting sensitive user directories.
Track OS version compliance across the Apple fleet and prioritize devices lagging behind the 26 release train.
Ingest macOS unified log entries related to tccd and sandbox violations into a central analytics platform for retrospective hunting.

How to Mitigate CVE-2025-43317

Immediate Actions Required

Update all Apple devices to iOS 26, iPadOS 26, macOS Tahoe 26, tvOS 26, visionOS 26, or watchOS 26 as applicable.
Enforce automatic updates through MDM policy and validate compliance across managed endpoints.
Audit installed applications on macOS for unsigned or untrusted binaries and remove any that are not business-justified.

Patch Information

Apple resolved CVE-2025-43317 in the 26 release of each affected operating system by tightening the underlying permissions check. Refer to the vendor advisories for platform-specific build numbers: Apple Support #125108, Apple Support #125114, Apple Support #125115, and Apple Support #125116.

Workarounds

Restrict application installation sources on macOS by enforcing Gatekeeper and requiring notarized applications only.
Use MDM configuration profiles to block sideloading and TestFlight builds on managed iOS and iPadOS devices.
Limit access to sensitive data categories (Photos, Contacts, Location) via managed privacy preferences until patching completes.

bash

# Verify macOS build after patching
sw_vers -productVersion
sw_vers -buildVersion

# List applications lacking notarization (candidates for review)
spctl --assess --verbose=4 /Applications/<AppName>.app