CVE-2026-59912: Dell Display Manager Privilege Escalation

CVE-2026-59912 Overview

CVE-2026-59912 is an Improper Access Control vulnerability [CWE-284] in Dell Display and Peripheral Manager (DDPM) for macOS, affecting versions prior to 2.3.0.1005. A low-privileged local attacker can exploit the flaw to escalate privileges and execute arbitrary code on the affected system. Dell disclosed the issue in security advisory DSA-2026-319 and released a fixed build to remediate the weakness. The vulnerability requires local access with low privileges and no user interaction, and it affects the confidentiality, integrity, and availability of the host.

Critical Impact
Successful exploitation grants attackers elevated privileges on macOS endpoints running vulnerable DDPM versions, enabling arbitrary code execution under a higher-privileged context.

Affected Products

Dell Display and Peripheral Manager (DDPM) for macOS, versions prior to 2.3.0.1005
Platform: macOS
Vendor: Dell

Discovery Timeline

2026-08-03 - CVE-2026-59912 published to NVD
2026-08-05 - Last updated in NVD database

Technical Details for CVE-2026-59912

Vulnerability Analysis

Dell Display and Peripheral Manager for macOS ships with a privileged component that fails to enforce proper access restrictions on protected operations. The weakness is categorized as Improper Access Control [CWE-284], indicating that the application does not adequately validate who is permitted to invoke sensitive functionality. A local user with limited privileges can interact with this exposed surface and cause it to perform actions reserved for higher-privileged contexts.

Because the attack surface is local, the adversary must already possess code execution on the endpoint as a standard user. Attackers commonly reach this position through phishing payloads, malicious installers, or supply-chain intrusions. Once resident, the local user leverages the flawed access control path in DDPM to escalate privileges and run arbitrary code.

Root Cause

The root cause is missing or insufficient authorization checks within a DDPM component that runs with elevated privileges on macOS. Privileged helpers on macOS typically expose XPC or Mach services that must validate the calling process using code signature and entitlement checks. When those checks are absent or incorrectly implemented, any local process can invoke privileged operations.

Attack Vector

Exploitation requires local access with low privileges and no user interaction. The attacker executes code as a standard macOS user, communicates with the vulnerable DDPM privileged component, and issues requests that the component processes without verifying caller identity. The privileged component then performs operations on behalf of the attacker, resulting in privilege elevation and arbitrary code execution. See the Dell Security Advisory DSA-2026-319 for vendor technical detail.

No public proof-of-concept code has been published, and no verified code examples are available for this advisory. The vulnerability mechanism is described in prose because no sanitized exploit sample has been released by the vendor or third parties.

Detection Methods for CVE-2026-59912

Indicators of Compromise

Unexpected child processes spawned by DDPM helper binaries or launch daemons running as root on macOS endpoints.
New or modified files in privileged locations such as /Library/LaunchDaemons/, /Library/PrivilegedHelperTools/, or /usr/local/bin/ following DDPM activity.
XPC or Mach service connections to DDPM privileged components originating from non-DDPM user processes.

Detection Strategies

Monitor process lineage where a low-privileged user process triggers a privileged DDPM helper that then executes shells, scripting interpreters, or persistence utilities.
Alert on unauthorized modifications to LaunchDaemons and privileged helper directories on systems with DDPM installed.
Baseline DDPM versions across the macOS fleet and flag hosts running versions prior to 2.3.0.1005.

Monitoring Recommendations

Ingest macOS Endpoint Security Framework telemetry covering process execution, code signing validation, and file modifications in privileged paths.
Correlate authentication events with subsequent privileged process activity to identify local privilege escalation attempts.
Track installation and update events for Dell software packages to confirm patch deployment across the environment.

How to Mitigate CVE-2026-59912

Immediate Actions Required

Upgrade Dell Display and Peripheral Manager for macOS to version 2.3.0.1005 or later on all affected endpoints.
Inventory macOS systems for DDPM installations and prioritize hosts belonging to privileged users or administrators.
Restrict local console and remote shell access to macOS endpoints to trusted personnel only.

Patch Information

Dell has published fixed software in advisory DSA-2026-319. Update DDPM for macOS to version 2.3.0.1005 or later. This is the vendor-recommended and only complete remediation.

Workarounds

If immediate patching is not possible, uninstall Dell Display and Peripheral Manager from macOS endpoints until the update can be applied.
Limit local user accounts on affected hosts and enforce least-privilege principles to reduce the pool of potential attackers.
Enable macOS System Integrity Protection and Gatekeeper, and audit installed privileged helpers for unsigned or unexpected components.

bash

# Check installed DDPM version on macOS
mdls -name kMDItemVersion "/Applications/Dell Display and Peripheral Manager.app"

# Remove vulnerable installation if patching is not yet possible
sudo rm -rf "/Applications/Dell Display and Peripheral Manager.app"
sudo launchctl remove com.dell.ddpm 2>/dev/null
sudo rm -f /Library/LaunchDaemons/com.dell.ddpm*.plist