CVE-2025-8076
📋 TL;DR
A stack buffer overflow vulnerability in Supermicro BMC web interface allows authenticated attackers to execute arbitrary code on affected servers. This affects Supermicro MBD-X13SEDW-F motherboard users with BMC enabled. Attackers must first authenticate to the BMC web interface before exploiting this vulnerability.
💻 Affected Systems
- Supermicro MBD-X13SEDW-F
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Full compromise of BMC with persistent access, ability to install firmware-level malware, and potential lateral movement to host operating system.
Likely Case
BMC compromise allowing attacker to control server power management, monitor system, and potentially access host system data.
If Mitigated
Limited impact due to network segmentation, strong authentication, and BMC access restrictions.
🎯 Exploit Status
Requires authenticated access to BMC web interface and knowledge of buffer overflow exploitation techniques.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Supermicro security advisory for specific firmware version
Vendor Advisory: https://www.supermicro.com/zh_tw/support/security_BMC_IPMI_Nov_2025
Restart Required: Yes
Instructions:
1. Download latest BMC firmware from Supermicro support site. 2. Log into BMC web interface. 3. Navigate to Maintenance > Firmware Update. 4. Upload and apply firmware update. 5. Reboot BMC after update completes.
🔧 Temporary Workarounds
Disable BMC Web Interface
linuxTemporarily disable BMC web interface while maintaining IPMI functionality
ipmitool raw 0x30 0x70 0x0c 0x00
Restrict BMC Network Access
linuxConfigure firewall to restrict BMC interface access to management network only
iptables -A INPUT -s 192.168.1.0/24 -p tcp --dport 443 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j DROP
🧯 If You Can't Patch
- Implement strict network segmentation for BMC interfaces
- Enforce strong authentication policies and multi-factor authentication for BMC access
🔍 How to Verify
Check if Vulnerable:
Check BMC firmware version via web interface or IPMI: ipmitool mc info | grep 'Firmware Revision'Check Version:
ipmitool mc info | grep 'Firmware Revision'Verify Fix Applied:
Verify firmware version matches patched version from Supermicro advisory📡 Detection & Monitoring
Log Indicators:
- Multiple failed authentication attempts followed by successful login and unusual BMC activity
- BMC firmware update events
- Unusual process execution in BMC logs
Network Indicators:
- Unusual traffic patterns to BMC web interface port (typically 443)
- Multiple authentication requests from single source
SIEM Query:
source="BMC" AND (event_type="authentication" AND result="success") FOLLOWED BY event_type="firmware_update" WITHIN 5m