Stack-Based Buffer Overflow in Supermicro BMC Firmware
CVE-2025-7623

5.4MEDIUM

Key Information:

Vendor

Smci

Status
Mbd-x13sedw-f
Vendor
CVE Published:
18 November 2025

What is CVE-2025-7623?

A stack-based buffer overflow vulnerability exists in the SMASH-CLP shell of Supermicro's BMC firmware. This flaw allows an authenticated attacker with SSH access to exploit a 260-byte stack buffer by delivering a specially crafted SMASH command. By manipulating the command, an attacker can overwrite critical return addresses and registers, leading to the execution of arbitrary code on the system's firmware operating environment.

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Affected Version(s)

MBD-X13SEDW-F BMC 01.04.11

References

https://www.supermicro.com/zh_tw/support/security_BMC_IPM...

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Coreweave Red Team and Hoang Bui from Coreweave
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