CVE-2025-36597 identifies a path traversal vulnerability in Dell Avamar Server, specifically versions 19.8 through 19.12 prior to patch 338905. The flaw arises from improper validation and limitation of file pathnames, allowing an attacker with high privileges and remote access to traverse directories outside the intended restricted scope. This can lead to unauthorized disclosure of sensitive information stored on the server. The vulnerability is classified under CWE-22, which involves insufficient sanitization of user-supplied input used in file path construction. The CVSS 3.1 base score is 4.7 (medium severity), reflecting network attack vector, low attack complexity, required high privileges, no user interaction, and impacts on confidentiality, integrity, and availability at a low level. While no exploits have been reported in the wild, the vulnerability poses a risk to organizations relying on Dell Avamar for backup and data protection, as attackers could leverage this flaw to access restricted files or data. The issue was publicly disclosed in February 2026, with Dell providing a patch (338905) to remediate the vulnerability. The vulnerability's exploitation requires an attacker to already have high-level access, which limits the attack surface but does not eliminate risk, especially in environments where privileged credentials may be compromised or insider threats exist.

The primary impact of CVE-2025-36597 is unauthorized information disclosure due to path traversal, potentially exposing sensitive backup data or configuration files stored on Dell Avamar Servers. This could lead to leakage of confidential organizational data, intellectual property, or personally identifiable information. Although the vulnerability requires high privileges, it increases the risk of lateral movement or data exfiltration by malicious insiders or attackers who have gained elevated access. Integrity and availability impacts are low but possible if attackers manipulate file paths to disrupt backup operations or corrupt data. Organizations globally that use Dell Avamar for backup and recovery could face compliance violations, reputational damage, and operational disruptions if this vulnerability is exploited. The lack of known exploits in the wild reduces immediate risk but does not preclude future attacks, especially as threat actors often target backup infrastructure for maximum impact.

To mitigate CVE-2025-36597, organizations should promptly apply Dell's official patch 338905 or any subsequent updates that address this vulnerability. If patching is not immediately feasible, restrict remote access to the Avamar Server to trusted networks and enforce strict access controls to limit high privilege accounts. Implement robust monitoring and logging of file access and administrative activities to detect suspicious path traversal attempts. Employ network segmentation to isolate backup servers from general user networks and reduce exposure. Regularly audit user privileges and remove unnecessary high-level access to minimize the attack surface. Additionally, conduct penetration testing focused on path traversal and directory traversal vulnerabilities in backup infrastructure to proactively identify weaknesses. Maintain up-to-date backups and incident response plans to quickly recover from potential exploitation.