Introduction
Remote management interfaces can be a single point of failure for enterprise servers. A newly disclosed stack-based buffer overflow in the Supermicro MBD-X13SEDW-F BMC web server (CVE-2025-8076) highlights how a single flaw in out-of-band management firmware can enable code execution or denial of service, even after authentication. Supermicro is a global leader in server and motherboard manufacturing, with products widely deployed in data centers, cloud infrastructure, and enterprise environments. The MBD-X13SEDW-F is part of their X13 server motherboard line, used in high-performance and mission-critical deployments worldwide.
Technical Information
CVE-2025-8076 is a stack-based buffer overflow (CWE-121) in the BMC web function of Supermicro MBD-X13SEDW-F. After logging into the BMC web server, an attacker can send a specially crafted payload to the web interface, triggering a buffer overflow on the stack. The root cause is insufficient bounds checking on user-supplied input handled by the web application. This likely results from unsafe memory or string operations (such as unchecked copies to a fixed-size stack buffer) in the web server code. Exploitation can overwrite stack memory, potentially allowing arbitrary code execution or causing the BMC to crash. The vulnerability requires valid credentials to the BMC web interface. No public code snippets are available for this specific flaw. This issue is part of a pattern of recurring stack-based buffer overflows in Supermicro BMC firmware, as documented in related CVEs throughout 2024 and 2025.
Affected Systems and Versions
- Product: Supermicro MBD-X13SEDW-F (Baseboard Management Controller firmware)
- Vulnerable component: BMC web server function
- Only the MBD-X13SEDW-F model is confirmed affected based on current public advisories
- No specific firmware version ranges are listed in the available sources
Vendor Security History
Supermicro has experienced multiple BMC firmware vulnerabilities in 2024 and 2025, including:
- CVE-2025-7623: Stack-based buffer overflow in SMASH-CLP shell
- CVE-2025-7704: Stack-based buffer overflow in Insyde SMASH shell
- CVE-2025-7937: Firmware signature verification bypass
- CVE-2025-6198: Firmware update mechanism flaws
Security advisories have been released frequently. The recurrence of memory safety issues suggests systemic challenges in firmware development practices. Patch response has generally been prompt, but the persistence of similar flaws indicates a need for more robust secure development processes.
