CVE-2026-23772: Dell Replay Manager Privilege Escalation

CVE-2026-23772 Overview

Dell Storage Manager - Replay Manager for Microsoft Servers version 8.0 contains an Improper Privilege Management vulnerability (CWE-269). A low privileged attacker with local access could potentially exploit this vulnerability to achieve elevation of privileges on the affected system.

Critical Impact

This local privilege escalation vulnerability allows attackers with limited access to gain elevated system privileges, potentially compromising the integrity and availability of Dell storage management infrastructure.

Affected Products

• Dell Storage Manager - Replay Manager for Microsoft Servers version 8.0

Discovery Timeline

• April 16, 2026 - CVE-2026-23772 published to NVD
• April 16, 2026 - Last updated in NVD database

Technical Details for CVE-2026-23772

Vulnerability Analysis

This vulnerability stems from improper privilege management within the Dell Storage Manager - Replay Manager component. The flaw allows a user with low-level privileges to escalate their access rights through local attack vectors. Since the attack requires local access and low privileges, an attacker would need initial foothold on the system but could then leverage this vulnerability to gain higher-level access rights.

The vulnerability can result in unauthorized modification of system components (high integrity impact) and potential disruption of storage management services (high availability impact), while also exposing some confidential information (low confidentiality impact).

Root Cause

The root cause of CVE-2026-23772 is improper privilege management (CWE-269) in the Dell Storage Manager - Replay Manager for Microsoft Servers. This weakness occurs when the software does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. In this case, the application fails to adequately restrict operations that should require elevated privileges, allowing low-privileged local users to perform actions beyond their intended authorization level.

Attack Vector

The attack vector for this vulnerability is local, meaning an attacker must have existing access to the target system to exploit the flaw. The exploitation does not require user interaction and can be performed with low attack complexity. A threat actor with low privilege access to a system running the vulnerable Dell Storage Manager - Replay Manager component could exploit improper privilege checks or permission handling within the application to elevate their privileges to a higher level, potentially gaining administrative control over the storage management functionality.

The vulnerability affects only the vulnerable component itself (unchanged scope), meaning the impact is contained to the Dell Storage Manager application and its associated resources.

Detection Methods for CVE-2026-23772

Indicators of Compromise

• Unexpected privilege escalation events or new administrator accounts on systems running Dell Storage Manager
• Anomalous process execution by the Dell Replay Manager service with elevated privileges
• Unauthorized modifications to Dell Storage Manager configuration files or registry entries
• Suspicious local user activity targeting storage management components

Detection Strategies

• Monitor Windows Security Event Logs for privilege escalation attempts (Event IDs 4672, 4673, 4674) on systems running Dell Storage Manager
• Implement application whitelisting to detect unauthorized executables spawned by Dell Replay Manager processes
• Deploy endpoint detection rules to identify abnormal behavior patterns from the Dell Storage Manager service
• Audit user privilege assignments and group memberships on systems with the vulnerable software installed

Monitoring Recommendations

• Enable verbose logging for Dell Storage Manager components and forward logs to a centralized SIEM
• Configure real-time alerts for any privilege modifications or escalation attempts on storage management servers
• Implement file integrity monitoring on Dell Storage Manager installation directories and configuration files
• Review access logs regularly for signs of unauthorized local access attempts

How to Mitigate CVE-2026-23772

Immediate Actions Required

• Apply the security update from Dell as soon as possible to remediate this vulnerability
• Restrict local access to systems running Dell Storage Manager - Replay Manager to only authorized administrators
• Implement the principle of least privilege for all user accounts on affected systems
• Isolate storage management systems from general-purpose workloads where feasible

Patch Information

Dell has released a security update to address this vulnerability. Organizations should review the Dell Security Update Advisory for detailed patch information and download the updated version of Dell Storage Manager - Replay Manager for Microsoft Servers.

Administrators should follow Dell's recommended upgrade procedures and test the update in a non-production environment before deploying to production systems.

Workarounds

• Limit local user access to systems running Dell Storage Manager to only essential personnel until the patch can be applied
• Implement additional access controls such as multi-factor authentication for local system access
• Enable Windows Credential Guard and other privilege protection mechanisms where supported
• Monitor and audit all local account activity on affected systems as an interim measure

# Example: Audit local user privileges on Windows systems
# Run in elevated PowerShell to identify users with local admin access
Get-LocalGroupMember -Group "Administrators" | Select-Object Name, ObjectClass, PrincipalSource

# Review Dell Storage Manager service configuration
Get-Service -Name "DellReplayManager*" | Select-Object Name, Status, StartType