CVE-2025-58770 is a vulnerability identified in AMI's AptioV BIOS firmware version 5.0, classified under CWE-280, which pertains to improper handling of insufficient permissions or privileges. The flaw allows a local attacker with limited privileges to escalate their authorization level within the BIOS environment. This escalation can lead to unauthorized modifications affecting the system's integrity and availability. The vulnerability does not require user interaction and can be exploited with low attack complexity, but it does require local access and some level of privileges (PR:L). The CVSS 4.0 score of 7.2 reflects a high severity, emphasizing the potential impact on confidentiality, integrity, and availability, with a particular focus on integrity and availability. The vulnerability is significant because BIOS firmware operates at a foundational level, controlling hardware initialization and security features; compromise here can undermine the entire system's trustworthiness. Although no known exploits are currently reported in the wild, the potential for escalation of privileges at the BIOS level makes this a critical concern for organizations. The lack of available patches at the time of publication necessitates immediate attention to access controls and monitoring. This vulnerability highlights the importance of securing firmware components and ensuring that BIOS updates and configurations are tightly controlled and audited.

For European organizations, the impact of CVE-2025-58770 could be severe, particularly in sectors where system integrity and availability are critical, such as finance, healthcare, government, and critical infrastructure. Successful exploitation could allow attackers to bypass operating system-level security controls by modifying BIOS settings or firmware, potentially leading to persistent malware infections, system instability, or denial of service. This could result in data corruption, loss of service, or unauthorized access to sensitive information. The local access requirement limits remote exploitation but does not eliminate risk, especially in environments with shared physical access or insufficient endpoint security. Given the foundational role of BIOS in system boot and security, compromised firmware can evade traditional detection mechanisms, complicating incident response and recovery. European organizations with extensive deployments of AMI AptioV firmware, especially in enterprise-grade hardware, face increased risk. The vulnerability could also impact supply chain security if exploited during hardware provisioning or maintenance. Overall, the threat undermines trust in hardware security and could have cascading effects on organizational cybersecurity posture.

1. Restrict and monitor physical and local access to systems running AMI AptioV 5.0 firmware to prevent unauthorized users from exploiting the vulnerability. 2. Implement strict endpoint security controls, including device control policies and user privilege management, to limit local user capabilities. 3. Enable BIOS-level security features such as password protection, Secure Boot, and firmware write protection where supported. 4. Monitor system logs and firmware integrity checks for unusual changes or unauthorized modifications indicative of exploitation attempts. 5. Coordinate with AMI and hardware vendors to obtain and apply firmware updates or patches as soon as they become available. 6. Incorporate firmware integrity verification into regular security audits and vulnerability assessments. 7. Educate IT and security teams about the risks associated with BIOS-level vulnerabilities and the importance of securing firmware. 8. Consider hardware-based security solutions such as TPM and hardware root of trust to detect and prevent unauthorized firmware changes. 9. For critical systems, implement layered defense strategies including network segmentation to limit the impact of compromised endpoints. 10. Maintain an incident response plan that includes procedures for BIOS-level compromise scenarios.