CVE-2025-58770
📋 TL;DR
CVE-2025-58770 is a BIOS vulnerability in AMI APTIOV firmware that allows local attackers to bypass permission checks and escalate privileges. This affects systems with vulnerable AMI BIOS implementations, potentially compromising system integrity and availability. The vulnerability requires physical or local access to the target system.
💻 Affected Systems
- Systems with AMI APTIOV BIOS firmware
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with persistent BIOS-level malware installation, rendering the system untrustworthy even after OS reinstallation.
Likely Case
Local privilege escalation allowing attackers to gain administrative control, install malware, or disable security controls.
If Mitigated
Limited impact if proper physical security controls prevent unauthorized local access to systems.
🎯 Exploit Status
Requires local access and BIOS/UEFI interaction knowledge. No public exploit code available at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: BIOS updates from hardware vendors
Vendor Advisory: https://go.ami.com/hubfs/Security%20Advisories/2025/AMI-SA-2025009.pdf
Restart Required: Yes
Instructions:
1. Contact hardware vendor for BIOS update. 2. Download appropriate BIOS update for your system model. 3. Follow vendor's BIOS update procedure. 4. Reboot system to apply update. 5. Verify BIOS version after update.
🔧 Temporary Workarounds
Physical Security Controls
allRestrict physical access to systems to prevent local exploitation
BIOS Password Protection
allEnable BIOS/UEFI password to restrict unauthorized BIOS access
🧯 If You Can't Patch
- Implement strict physical security controls and access monitoring
- Isolate affected systems in secure areas with limited personnel access
🔍 How to Verify
Check if Vulnerable:
Check BIOS version against vendor's vulnerability list or run: wmic bios get smbiosbiosversion (Windows) or dmidecode -s bios-version (Linux)Check Version:
Windows: wmic bios get smbiosbiosversion | Linux: dmidecode -s bios-versionVerify Fix Applied:
Verify BIOS version after update matches vendor's patched version📡 Detection & Monitoring
Log Indicators:
- BIOS/UEFI configuration changes
- Unauthorized physical access logs
- Unexpected system reboots into BIOS
Network Indicators:
- Not applicable - local exploit only
SIEM Query:
Search for BIOS/UEFI access events or physical security system alerts for unauthorized access