CVE-2026-46468 in PowerProtect Data Domain
Summary
by MITRE • 07/03/2026
Dell PowerProtect Data Domain, versions 7.7.1.0 through 8.7, LTS2026 release version 8.6.1.0 through 8.6.1.10, LTS2025 release version 8.3.1.0 through 8.3.1.30, LTS2024 release versions 7.13.1.0 through 7.13.1.70 contain an improper link resolution before file access ('Link following') vulnerability. A high privileged attacker with local access could potentially exploit this vulnerability, leading to information exposure.
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Analysis
by VulDB Data Team • 07/04/2026
The Dell PowerProtect Data Domain systems present a critical link following vulnerability that stems from improper resolution of symbolic links before file access operations. This weakness exists across multiple release versions including 7.7.1.0 through 8.7, with specific affected LTS releases spanning from 8.6.1.0 through 8.6.1.10 and 8.3.1.0 through 8.3.1.30. The vulnerability falls under CWE-59 which specifically addresses improper link resolution before file access, a well-documented weakness in Unix-like systems where symbolic links can be manipulated to redirect file access to unintended locations. This flaw represents a significant security risk as it allows attackers with local administrative privileges to potentially bypass normal access controls and gain unauthorized access to sensitive data.
The technical implementation of this vulnerability occurs when the system processes symbolic links without properly validating or resolving them against the intended file paths before executing file operations. An attacker with high privileged local access can exploit this by creating malicious symbolic links that point to sensitive files or directories outside the intended scope. This allows for information exposure scenarios where confidential data that should be protected becomes accessible through the improper link resolution mechanism. The vulnerability is particularly concerning because it leverages existing administrative privileges, meaning that an attacker who has already gained local access can escalate their capabilities without requiring additional authentication mechanisms. The exploitation process typically involves crafting symbolic links that, when processed by the Data Domain system, redirect file operations to locations containing sensitive information.
The operational impact of this vulnerability extends beyond simple information disclosure as it represents a fundamental flaw in the system's file access control mechanisms. Organizations utilizing these Data Domain appliances face potential exposure of backup data, configuration files, and potentially authentication credentials or other sensitive materials that may be stored in accessible locations. The attack vector requires local administrative access, which means that the vulnerability could be exploited by insider threats or attackers who have already compromised local system access through other means. This makes the impact particularly severe as it can enable unauthorized access to backup repositories that often contain critical organizational data including database backups, application files, and system configurations.
Mitigation strategies for this vulnerability should focus on immediate system updates and configuration hardening measures. Dell has released patches for affected versions that address the improper link resolution behavior by implementing proper validation of symbolic links before file operations. Organizations should prioritize applying these security updates as soon as possible to eliminate the exploitation risk. Additionally, system administrators should implement strict access controls limiting local administrative privileges to only essential personnel and establish monitoring procedures to detect unusual symbolic link creation or modification activities. Network segmentation and least privilege principles should be enforced to minimize potential damage from any successful exploitation attempts. The vulnerability also highlights the importance of implementing proper file system auditing and continuous monitoring for unauthorized symbolic link manipulation, which aligns with ATT&CK technique T1566.002 focusing on credential access through privilege escalation mechanisms that exploit system weaknesses in file handling operations.