CVE-2025-43887 in PowerProtect Data Manager
Summary
by MITRE • 09/10/2025
Dell PowerProtect Data Manager, version(s) 19.19 and 19.20, Hyper-V contain(s) an Incorrect Default Permissions vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Elevation of privileges.
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Analysis
by VulDB Data Team • 10/20/2025
The vulnerability identified as CVE-2025-43887 affects Dell PowerProtect Data Manager versions 19.19 and 19.20 when deployed in Hyper-V environments. This represents a critical security flaw classified under CWE-276, which specifically addresses incorrect default permissions within software systems. The vulnerability stems from improper permission settings that are established during the initial installation or configuration of the data protection manager, creating exploitable conditions that can be leveraged by malicious actors with minimal privileges.
The technical flaw manifests through the improper assignment of access controls and file permissions within the Hyper-V virtualization context where Dell PowerProtect Data Manager operates. When the system initializes, default security settings fail to properly restrict access to critical system components and administrative functions. This misconfiguration allows local users who may not possess elevated privileges to manipulate system resources that should normally be restricted to administrators or privileged processes. The vulnerability specifically impacts the privilege escalation mechanisms within the data manager's operational framework, creating pathways for unauthorized elevation of privileges through the exploitation of these default permission flaws.
From an operational impact perspective, this vulnerability creates significant security risks for organizations utilizing Dell PowerProtect Data Manager in virtualized environments. Attackers with local access can potentially gain administrative privileges, which would allow them to modify or delete critical data protection configurations, access sensitive backup data, or manipulate the integrity of the backup and recovery processes. The implications extend beyond simple privilege escalation as they can compromise the entire data protection infrastructure, potentially leading to complete system compromise and data loss. This vulnerability particularly affects organizations that rely heavily on automated backup and recovery processes, as the attacker could potentially disrupt these critical functions or manipulate backup data to facilitate further attacks.
The exploitation of this vulnerability aligns with tactics described in the MITRE ATT&CK framework under T1068, which covers "Exploitation for Privilege Escalation." The low privilege requirement makes this vulnerability particularly dangerous as it can be exploited by adversaries who have gained initial access through other means. Organizations should consider implementing layered security controls and monitoring for unusual privilege escalation attempts. The vulnerability also relates to T1566, which addresses social engineering and initial access methods, as attackers might use this flaw as part of a broader attack chain following initial compromise.
Mitigation strategies should include immediate patching of affected Dell PowerProtect Data Manager versions to address the incorrect default permissions. Organizations should also implement comprehensive permission reviews and access control audits to identify and correct any existing misconfigurations. Network segmentation and least privilege principles should be enforced to limit potential damage from successful exploitation. System monitoring should be enhanced to detect unusual privilege escalation activities, and regular security assessments should be conducted to identify similar misconfigurations in other system components. Additionally, organizations should consider implementing privileged access management solutions to further control and monitor access to critical system functions. The vulnerability underscores the importance of proper security configuration management and the need for regular security assessments to identify and remediate default permission flaws that could be exploited by adversaries.