CVE-2026-63695 in SmartFabric OS10 Software
Summary
by MITRE • 09/15/2026
Dell SmartFabric OS10 Software, versions prior to 10.6.1.3, contains a Session Fixation vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to Session theft.
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Analysis
by VulDB Data Team • 09/15/2026
The identified security flaw resides within Dell SmartFabric OS10 software in versions preceding the release of version 10.6.1.3 and is classified as a session fixation vulnerability. This type of weakness fundamentally undermines the integrity of user authentication sessions by allowing an attacker to set or predict a valid session identifier before the victim has authenticated themselves. In typical web application architectures, when a user logs in, the server generates a new, unpredictable session ID to ensure that previous identifiers are invalidated and cannot be reused. However, due to this implementation defect, the system fails to properly regenerate the session token upon successful authentication or allows an attacker to inject a known session identifier into the communication stream. This failure creates a direct pathway for unauthorized access because the server will accept and maintain sessions associated with IDs that were established by external parties rather than generated internally during the login process.
An unauthenticated attacker possessing remote network access can exploit this vulnerability without needing valid credentials or prior authentication privileges. The operational mechanism involves the attacker initiating a connection to the SmartFabric OS10 management interface and either capturing an existing session ID from public URLs, cookies, or HTTP headers, or forcing the victim's browser to use a specific session identifier crafted by the attacker. Once the legitimate administrator logs into the system using their credentials while this manipulated session context is active, the server binds the authenticated administrative privileges to that pre-determined session ID. Consequently, the attacker can simply refresh or reuse the same session identifier they previously established and gain full access to the compromised account as if they had performed a standard login sequence themselves. This bypasses multi-factor authentication mechanisms in some configurations because the system trusts the validity of the session token rather than re-verifying the identity through fresh credential submission for every sensitive action.
The impact of this vulnerability is severe, particularly within data center and enterprise network environments where Dell SmartFabric OS10 serves as a critical infrastructure component managing switch fabrics and network policies. Successful exploitation leads to complete session theft, enabling an attacker to assume the identity of any authenticated user, including high-privilege administrators. This unauthorized access can result in the exfiltration of sensitive configuration data, modification of routing tables, disruption of network services, or further lateral movement into deeper parts of the enterprise infrastructure. The ability to hijack sessions without detection poses a significant risk to availability and confidentiality, as attackers may operate within the system for extended periods before anomalies are detected by security monitoring tools that rely on standard authentication logs rather than session integrity checks.
From a classification perspective, this vulnerability aligns with CWE-384, which describes Session Fixation, indicating a failure in proper session management practices such as not invalidating old sessions upon login or failing to generate new session identifiers after privilege elevation. In the context of the MITRE ATT&CK framework, this exploitation technique maps to T1078, specifically Valid Accounts and potentially T1528 if used for initial access via phishing or credential stuffing scenarios where session tokens are harvested. To mitigate this risk, organizations must immediately apply the vendor-recommended patch by upgrading Dell SmartFabric OS10 to version 10.6.1.3 or later, which addresses the underlying logic errors in session handling. Additionally, administrators should enforce strict HTTP security headers such as Secure and HttpOnly flags on cookies to prevent client-side script access to session tokens and implement network-level controls like IP whitelisting for management interfaces where feasible. Regular auditing of active sessions and implementing timeout policies can further reduce the window of opportunity for exploitation while patching efforts are underway.