Overview
The security vulnerability CVE-2025-36557 represents a significant threat to systems utilizing an HTTP profile with the Enforce RFC Compliance option configured on a virtual server. This vulnerability can cause the Traffic Management Microkernel (TMM) to terminate due to undisclosed requests. The subsequent termination could potentially lead to a system compromise or data leakage, hence posing an immense risk to user data privacy and system integrity.
Vulnerability Summary
CVE ID: CVE-2025-36557
Severity: High (7.5 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage
Affected Products
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Passwords, credentials, confidential files, screenshots, internal discussions, sensitive AI context, and private coordination should not become exposed across ordinary communication platforms.
- • Encrypted identity
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- • End-to-end encrypted chat, calls, files, and notes
- • Sensitive AI work and protected collaboration
- • Built for information that cannot leak
Our mission is to secure human work alongside AI.
Product | Affected Versions
Traffic Management Microkernel (TMM) | Versions reaching End of Technical Support (EoTS)
How the Exploit Works
The exploitation of this vulnerability occurs when an attacker sends undisclosed requests to a virtual server with an HTTP profile that enforces RFC compliance. These undisclosed requests cause the server’s Traffic Management Microkernel (TMM) to terminate. The termination could lead to a potential system compromise or data leakage.
Conceptual Example Code
Below is a conceptual example of how the vulnerability might be exploited using an HTTP request:
POST /undisclosed/request HTTP/1.1
Host: targetedserver.com
Content-Type: application/json
{ "malicious_payload": "Terminate TMM" }
In the example, the malicious payload is designed to trigger the termination of the Traffic Management Microkernel (TMM) when it is processed by the target server.
Mitigation Guidance
The recommended mitigation strategy for this vulnerability is to apply the vendor’s patch, which is designed to fix the vulnerability. If the patch is not immediately available or applicable, using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) could serve as a temporary mitigation strategy. These systems can detect and block the undisclosed requests causing the TMM termination, thereby limiting the potential for system compromise or data leakage.
