Description

Dell System Update, versions prior to 2.3.0.0, contains an Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to Filesystem access for attacker. This vulnerability is considered critical because it can be leveraged by an unauthenticated attacker to execute arbitrary code with root privileges. Successful exploitation may allow complete compromise of the vulnerable application and underlying operating system. Dell recommends customers upgrade at the earliest opportunity.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "9.6",
  "pubDate": "2026-10-06T19:18:16.430Z",
  "pubdate": "2026-10-06T19:18:16.430Z",
  "executiveSummary": "Dell System Update versions prior to 2.3.0.0 contain a critical Path Traversal vulnerability classified as Improper Limitation of a Pathname to a Restricted Directory.\nThis vulnerability allows an unauthenticated, remote attacker to bypass filesystem restrictions, potentially leading to arbitrary code execution with root-level privileges.\nThe flaw affects the underlying security posture of the host system, enabling complete unauthorized control over the application and the operating system.\nGiven the lack of authentication requirements and the potential for remote exploitation, this vulnerability poses a severe risk to organizational infrastructure.\nSuccessful exploitation facilitates unauthorized filesystem access, allowing attackers to read, modify, or execute arbitrary files, which typically results in a full system compromise.\nDell mandates that customers upgrade to version 2.3.0.0 or later to remediate the vulnerability and mitigate the threat of remote exploitation.",
  "technicalDetails": "The vulnerability originates from the improper sanitization of user-supplied input when processing pathnames within the Dell System Update application. By failing to correctly validate or restrict file paths, the application allows an attacker to manipulate file references using directory traversal sequences, such as '../'.\nThis flaw enables an attacker to escape the application's intended directory structure and interact with sensitive files elsewhere on the filesystem. Since the vulnerable component operates with root privileges, any file write or execution capability gained through the traversal can be weaponized to achieve arbitrary code execution.\nThe attack flow begins with an unauthenticated remote actor crafting a request containing malformed path strings designed to navigate outside the secure sandbox. When the Dell System Update service processes this input, the path traversal logic fails to enforce boundary checks, resulting in the service performing operations on unintended files. If the attacker targets system binaries, configuration files, or startup scripts, they can overwrite legitimate content with malicious payloads.\nFollowing the successful placement of malicious files or the modification of configuration parameters, the attacker triggers the execution of these files. Because the service executes with root privileges, the injected code is granted the same level of authority, effectively granting the attacker full control over the host operating system. This represents a complete breach of the principle of least privilege, as the service context is utilized as a vehicle for systemic compromise.\nThe exploitation does not require prior knowledge of the target's internal network or specific user credentials, making it highly attractive for automated exploitation attempts in exposed environments. Once the initial access is obtained, the attacker can install persistent backdoors, escalate privileges further if necessary, or exfiltrate sensitive data from the host. Post-exploitation impact includes complete system compromise, the potential for lateral movement within the network, and the degradation of the security integrity of the Dell System Update environment."
}