CVE-2024-5477 in HP
Summary
by MITRE • 08/13/2025
A potential security vulnerability has been identified in the System BIOS for some HP PC products which may allow escalation of privilege, arbitrary code execution, denial of service, or information disclosure via a physical attack that requires specialized equipment and knowledge. HP is releasing firmware mitigation for the potential vulnerability.
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Analysis
by VulDB Data Team • 05/05/2026
This vulnerability resides within the system bios firmware of certain hp pc products, representing a critical security weakness that could be exploited through physical attack vectors requiring specialized equipment and technical knowledge. The flaw manifests as a potential privilege escalation vulnerability that could enable attackers to execute arbitrary code with elevated system privileges, effectively bypassing traditional operating system security controls. The vulnerability's nature suggests it operates at the firmware level, making it particularly dangerous as it can persist across operating system reboots and is often invisible to standard security monitoring tools. This type of vulnerability directly impacts the integrity and confidentiality of the affected systems, as it could potentially allow unauthorized access to sensitive information or complete system compromise.
The technical implementation of this vulnerability likely involves improper validation or handling of input within the bios firmware code, possibly through buffer overflows, insecure parameter handling, or inadequate access controls in the firmware's privileged execution paths. Such flaws typically occur when firmware developers do not adequately consider the security implications of low-level code execution or fail to implement proper input sanitization and privilege separation mechanisms. The vulnerability's classification aligns with common weaknesses identified in the cwe dictionary, particularly those related to firmware security and privilege escalation in embedded systems. Attackers exploiting this weakness could potentially gain access to system memory, modify firmware components, or execute malicious code that operates below the operating system level, making detection and remediation extremely challenging.
The operational impact of this vulnerability extends beyond simple privilege escalation, as it could enable attackers to perform denial of service attacks by corrupting critical firmware components or cause information disclosure through unauthorized access to system memory or storage. The requirement for specialized physical equipment and knowledge indicates this vulnerability likely requires direct hardware access or sophisticated attack vectors such as hardware-based side-channel attacks, which aligns with tactics and techniques documented in the attack framework. Organizations using affected hp products face significant risks including complete system compromise, data breaches, and potential loss of operational continuity. The vulnerability's impact is particularly concerning given that firmware-level attacks are notoriously difficult to detect and remediate, often requiring specialized tools and expertise to properly address.
Mitigation strategies for this vulnerability should focus on immediate firmware updates provided by hp, which represent the primary defense mechanism against exploitation. Organizations must implement comprehensive firmware update management processes to ensure all affected systems receive the necessary patches promptly. Additional protective measures include physical security controls to prevent unauthorized access to systems, implementation of firmware integrity monitoring solutions, and enhanced hardware security modules that can detect and prevent unauthorized firmware modifications. Security teams should also consider implementing runtime protection mechanisms and establishing incident response procedures specifically designed for firmware-level attacks. The vulnerability underscores the importance of maintaining up-to-date firmware across all system components and highlights the necessity of incorporating firmware security into overall enterprise security strategies, as outlined in industry best practices for embedded system security and hardware-based attack prevention.