Stack-based Buffer OverflowWeakness · CWE-121

CVE-2025-8727

HIGH · 7.2 CVSS v3.1 Published 2025-11-18
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
78/100
Remediation priority · High
Remotely reachable Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
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.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

A stack buffer overflow vulnerability exists in the Supermicro BMC web interface for the MBD-X13SEDW-F motherboard. After successfully authenticating to the BMC web server, an attacker can exploit this by sending a specially crafted malicious payload that overflows a stack-based buffer, potentially leading to remote code execution.

MitigationApply any available Supermicro firmware updates for the BMC when released. In the interim, restrict BMC network access to trusted networks, enforce strong authentication credentials, and monitor for unauthorized access attempts.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify the motherboard model
    Check the installed Supermicro motherboard model in your environment. Look for 'MBD-X13SEDW-F' in your hardware inventory, system documentation, or by accessing the BMC and checking the board information page.
    Affected if The system uses the MBD-X13SEDW-F motherboard model.
  2. Verify BMC web interface is enabled
    Access the BMC web interface by navigating to the IP address of the BMC (typically accessible via HTTP/HTTPS on port 80/443). Check if the login page loads successfully, indicating the web interface is active.
    Affected if The BMC web interface is accessible and accepts authentication requests.
  3. Check BMC firmware version
    Log into the BMC web interface and navigate to the 'Maintenance' or 'Firmware Update' section to view the current BMC firmware version. Record the firmware version string displayed.
    Affected if The installed BMC firmware version is older than the latest available version from Supermicro for this motherboard.
  4. Confirm BMC network exposure
    Determine if the BMC web interface is reachable from untrusted networks by reviewing network configuration, firewall rules, and VLAN placement. Check if the BMC IP is on a management network isolated from public or untrusted segments.
    Affected if The BMC web interface is reachable from networks outside your trusted management network.
  5. Review BMC authentication configuration
    In the BMC web interface, go to 'Security' or 'User Management' settings and verify that strong, unique credentials are configured for administrative accounts. Check if default credentials are still in use.
    Affected if Weak, default, or shared BMC credentials are configured, or if the account used for exploitation could be obtained by an attacker.

You are affected if you have the MBD-X13SEDW-F motherboard with an accessible BMC web interface running firmware that has not been updated to the latest Supermicro version, and the BMC is reachable from a network where an authenticated attacker could send malicious requests.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply any available Supermicro firmware updates for the BMC when released. In the interim, restrict BMC network access to trusted networks, enforce strong authentication credentials, and monitor for unauthorized access attempts.

Have this fixed Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA4.0 h
22.0 hours of engineering $3,860
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Scan for this in your stack

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dbcve dependency scanner

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-8727 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
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  • Version or environment caveats, and links to real fixes
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