CVE-2025-11577 is a vulnerability identified in Clevo notebook system firmware, specifically version 1.07.07TRO1, where private cryptographic signing keys used for Intel Boot Guard and Boot Policy Manifest verification were inadvertently embedded within the UEFI firmware update packages (e.g., B10717.exe). These keys are intended to ensure that only firmware images signed by the vendor are trusted and allowed to execute during the early boot process, protecting the system from unauthorized or malicious firmware modifications. The exposure of these private keys effectively breaks the chain of trust, enabling an attacker to sign malicious firmware images that the system will accept as legitimate. This undermines the integrity of the boot process, potentially allowing persistent, stealthy malware to be installed at the firmware level, which is difficult to detect or remove. The vulnerability does not require user interaction or privileges to exploit but typically requires local or physical access to deploy malicious firmware. The CVSS v3.1 score is 7.6 (high), reflecting the critical impact on confidentiality, integrity, and availability, with low attack complexity and no privileges required. Although no known exploits have been reported in the wild, the risk is significant due to the potential for firmware-level compromise that can bypass most security controls. The vulnerability is categorized under CWE-321 (Use of Hard-coded Cryptographic Key), highlighting poor key management practices in the firmware development lifecycle. Clevo has not yet released patches, and no mitigation links are currently available. Organizations relying on Clevo notebooks should be aware of this threat and prepare to apply firmware updates once released.

The primary impact of CVE-2025-11577 on European organizations is the potential for attackers to gain persistent, stealthy control over affected Clevo notebooks by installing malicious firmware that appears trusted by the system. This compromises the confidentiality, integrity, and availability of the device and any sensitive data processed or stored on it. In sectors such as government, defense, critical infrastructure, and industrial manufacturing—where Clevo notebooks may be used for secure operations—the risk is especially severe. Attackers could bypass endpoint security, implant rootkits, or establish long-term espionage footholds. The vulnerability also undermines trust in secure boot mechanisms, complicating incident response and forensic investigations. Although exploitation requires local or physical access, targeted attacks or insider threats could leverage this vulnerability to escalate privileges or maintain persistence. The lack of available patches increases exposure time, and organizations without firmware integrity monitoring are at higher risk. The impact extends to supply chain security, as compromised firmware could propagate through device servicing or resale. Overall, the vulnerability poses a significant threat to the security posture of European organizations using affected Clevo hardware, particularly in high-value or sensitive environments.

1. Monitor Clevo’s official channels closely for firmware updates addressing CVE-2025-11577 and apply patches immediately upon release. 2. Restrict physical and local access to devices to trusted personnel only, as exploitation requires local or physical access. 3. Implement strict controls over firmware update processes, including authentication and authorization mechanisms, to prevent unauthorized firmware flashing. 4. Deploy firmware integrity verification tools and endpoint detection solutions capable of detecting unauthorized firmware modifications or anomalies in the boot process. 5. Conduct regular audits of firmware versions across the device fleet to identify and remediate vulnerable systems promptly. 6. Educate IT and security teams about the risks of firmware-level attacks and the importance of secure boot integrity. 7. Consider hardware replacement or isolation strategies for critical systems if patches are delayed or unavailable. 8. Use hardware-based security features such as TPM and Intel Boot Guard configurations to enhance boot process security, ensuring they are correctly enabled and configured. 9. Maintain comprehensive incident response plans that include firmware compromise scenarios. 10. Collaborate with suppliers and service providers to ensure secure firmware management practices throughout the device lifecycle.