CVE-2025-8076 in MBD-X13SEDW-F
Summary
by MITRE • 11/18/2025
There is a vulnerability in the Supermicro BMC web function at Supermicro MBD-X13SEDW-F. After logging into the BMC Web server, an attacker can use a specially crafted payload to trigger the Stack buffer overflow vulnerability.
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Analysis
by VulDB Data Team • 11/18/2025
The vulnerability identified as CVE-2025-8076 represents a critical stack buffer overflow flaw within the BMC web interface of Supermicro MBD-X13SEDW-F motherboards. This issue resides in the Baseboard Management Controller implementation that governs remote system administration capabilities. The vulnerability specifically manifests when an attacker successfully authenticates to the BMC web server and subsequently submits a maliciously crafted payload designed to exploit the buffer overflow condition. The affected system architecture utilizes a web-based management interface that processes user input through various HTTP endpoints, creating an attack surface where unvalidated input can lead to memory corruption.
The technical exploitation of this vulnerability occurs through the manipulation of stack-based buffer structures within the BMC web server process. When legitimate authentication credentials are provided and followed by malicious input, the system fails to properly validate the size of incoming data before copying it into fixed-size stack buffers. This fundamental flaw allows attackers to overwrite adjacent memory locations including return addresses and control data, potentially enabling arbitrary code execution within the privileged BMC context. The vulnerability aligns with CWE-121 Stack-based Buffer Overflow, which specifically addresses buffer overflows occurring in stack memory regions where insufficient bounds checking permits data to overwrite adjacent memory segments. The attack vector leverages the authenticated access requirement, making it a post-authentication vulnerability that requires an attacker to first establish valid credentials before exploiting the memory corruption.
The operational impact of this vulnerability extends beyond simple privilege escalation as the BMC represents a critical management interface with elevated system privileges. Successful exploitation could allow attackers to gain complete control over the target system, potentially leading to persistent backdoor access, data exfiltration, or further network infiltration. The BMC environment typically maintains access to system firmware, hardware configuration settings, and can execute privileged operations that would otherwise be restricted to authorized administrators. This vulnerability creates a significant risk for enterprise environments where Supermicro servers are deployed, as the BMC interface often remains accessible through standard network protocols and may not be adequately protected by traditional network segmentation measures. The attack surface becomes particularly concerning when considering that BMC interfaces are frequently exposed to external networks or remain accessible through default configurations, making them attractive targets for adversaries seeking persistent access to critical infrastructure.
Mitigation strategies for CVE-2025-8076 should prioritize immediate firmware updates from Supermicro to address the identified buffer overflow condition. Organizations must implement strict access controls for BMC interfaces including mandatory use of strong authentication mechanisms, network segmentation, and limiting access to trusted administrative networks. The implementation of network-based intrusion detection systems can help monitor for suspicious traffic patterns associated with exploitation attempts, while regular security assessments should verify that BMC interfaces are properly configured and that default credentials have been changed. Additionally, organizations should consider implementing privileged access management solutions that restrict direct BMC access and enforce just-in-time administrative access controls. According to ATT&CK framework, this vulnerability maps to T1078 Valid Accounts and T1566 Phishing, as attackers may leverage compromised credentials to access the BMC interface and subsequently exploit the buffer overflow. The security community should also monitor for potential related vulnerabilities in similar Supermicro BMC implementations and ensure comprehensive patch management programs include firmware updates for all server management controllers.