CVE-2026-59913: Dell Display Manager Privilege Escalation

CVE-2026-59913 Overview

CVE-2026-59913 is a Missing Authentication for Critical Function vulnerability [CWE-306] in Dell Display and Peripheral Manager (DDPM) for macOS. The flaw affects DDPM Mac versions prior to 2.3.0.1005. A local, low-privileged attacker can invoke a privileged function that lacks authentication controls, resulting in elevation of privileges on the affected macOS host. Dell published advisory DSA-2026-319 to address the issue.

Critical Impact
A low-privileged local user can escalate to higher privileges on macOS endpoints running vulnerable DDPM builds, gaining full confidentiality, integrity, and availability impact on the host.

Affected Products

Dell Display and Peripheral Manager (DDPM) for macOS, versions prior to 2.3.0.1005
Deployments on macOS endpoints where DDPM manages Dell monitors and peripherals
Enterprise fleets using DDPM for display configuration and firmware updates

Discovery Timeline

2026-08-03 - CVE-2026-59913 published to NVD
2026-08-05 - Last updated in NVD database

Technical Details for CVE-2026-59913

Vulnerability Analysis

Dell Display and Peripheral Manager exposes a critical function on macOS that does not enforce authentication before executing privileged operations. Under [CWE-306], the affected component accepts requests from any local process without verifying the caller's identity or authorization. This design gap allows any process running under a low-privileged user account to invoke functionality reserved for higher-privileged contexts.

On macOS, applications like DDPM typically communicate with helper components through XPC services or privileged helper tools installed via SMJobBless. When these interfaces omit code-signing validation, entitlement checks, or client authentication, unprivileged callers can send messages that the helper processes with elevated rights. Exploitation results in local privilege escalation with high impact across confidentiality, integrity, and availability.

At the time of publication, no public exploit code or CISA KEV entry exists for CVE-2026-59913. The EPSS probability is low, but the presence of DDPM on managed Dell fleets makes this a practical post-compromise escalation path.

Root Cause

The root cause is the absence of authentication on a critical function exposed by the DDPM macOS client or its associated privileged helper. The component trusts local callers implicitly rather than validating the caller's code signature, bundle identifier, or entitlements before executing sensitive operations.

Attack Vector

Exploitation requires local access with low privileges. The attacker executes code as a standard user on a macOS system with a vulnerable DDPM version installed. The attacker then communicates with the unauthenticated critical function to trigger privileged operations, which the helper performs on the attacker's behalf. No user interaction is required beyond the attacker's own execution.

Refer to the Dell Security Advisory DSA-2026-319 for vendor-specific technical details.

Detection Methods for CVE-2026-59913

Indicators of Compromise

Unexpected child processes spawned by DDPM helper binaries or launch daemons associated with com.dell.ddpm
New or modified files in privileged directories such as /Library/LaunchDaemons/, /Library/PrivilegedHelperTools/, or /usr/local/bin/ written by DDPM-related processes
macOS authd or security log entries showing privileged operations without a preceding user authentication prompt

Detection Strategies

Inventory macOS endpoints and flag hosts running DDPM builds earlier than 2.3.0.1005
Monitor XPC and Mach message traffic to DDPM helper services from non-DDPM client processes
Alert on privilege transitions where a low-privileged process leads to root-owned file writes or process launches shortly after DDPM helper activity

Monitoring Recommendations

Correlate process telemetry, file integrity events, and authentication logs on macOS endpoints to detect unauthenticated privileged invocations
Track DDPM version strings in software inventory feeds and generate alerts on non-compliant hosts
Baseline normal DDPM helper behavior and alert on anomalous callers or unusual command arguments

How to Mitigate CVE-2026-59913

Immediate Actions Required

Upgrade Dell Display and Peripheral Manager for macOS to version 2.3.0.1005 or later on all affected endpoints
Restrict interactive and remote local access to macOS hosts running vulnerable DDPM builds until patching completes
Audit local user accounts and remove unnecessary standard-user access on systems handling sensitive data

Patch Information

Dell has published a fixed release addressing CVE-2026-59913. Administrators should follow the guidance in Dell Security Advisory DSA-2026-319 and deploy DDPM Mac 2.3.0.1005 or a later version. Distribute the update through the organization's macOS management platform (for example, Jamf, Kandji, or Intune for Mac) to ensure fleet-wide coverage.

Workarounds

Uninstall DDPM from macOS endpoints that do not require Dell monitor management until the patched version is deployed
Disable or unload the DDPM privileged helper launch daemon on hosts where the application cannot be immediately removed
Enforce application allowlisting to prevent execution of untrusted local binaries that could invoke the vulnerable interface

bash

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

# Unload the DDPM privileged helper as a temporary mitigation
sudo launchctl unload /Library/LaunchDaemons/com.dell.ddpm.*.plist

# Remove the application if not required
sudo rm -rf "/Applications/Dell Display and Peripheral Manager.app"