Introduction
The remote management interface on an enterprise server can be a single point of failure. CVE-2025-8076, a newly disclosed stack-based buffer overflow in the Supermicro MBD-X13SEDW-F BMC web server, shows how one flaw in out-of-band management firmware can let an attacker who has already authenticated execute code or cause a denial of service. Supermicro is a major global manufacturer of servers and motherboards, and its products are widely deployed in data centers, cloud infrastructure, and enterprise environments. The MBD-X13SEDW-F belongs to its X13 server motherboard line, which is used in high-performance and mission-critical deployments around the world.
Technical Information
CVE-2025-8076 is a stack-based buffer overflow (CWE-121) in the BMC web function of the Supermicro MBD-X13SEDW-F. An attacker who has logged into the BMC web server can send a specially crafted payload to the web interface and overflow a buffer on the stack. The vulnerability requires valid credentials for the BMC web interface.
The root cause is insufficient bounds checking on user-supplied input that the web application handles. This likely comes from unsafe memory or string operations in the web server code, such as unchecked copies into a fixed-size stack buffer. Exploitation can overwrite stack memory, which may allow arbitrary code execution or crash the BMC. No public code snippets are available for this specific flaw.
The issue fits a pattern of recurring stack-based buffer overflows in Supermicro BMC firmware, 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, according to current public advisories
- The available sources list no specific firmware version ranges
Vendor Security History
Supermicro BMC firmware has had multiple 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 come out frequently, and patch response has generally been prompt. The repeated memory safety bugs, though, suggest systemic problems in how the firmware is developed, and the persistence of similar flaws points to a need for stronger secure development processes.
