CVE-2025-3052 is a high-severity arbitrary write vulnerability in Microsoft signed UEFI firmware. This vulnerability allows for code execution of untrusted software, enabling an attacker to control its value. As a result, arbitrary memory writes can occur, including the modification of critical firmware settings stored in NVRAM. Exploiting this vulnerability could enable security bypasses, persistence mechanisms, or full system compromise.
With a CVSS score of 8.2, this vulnerability represents a significant risk to organizations. The potential for attackers to manipulate firmware settings poses a severe threat, as it may lead to unauthorized access and control over systems. Organizations should prioritize patching immediately to safeguard their environments.
The vulnerability was published on June 10, 2025. Currently, the exploitation status is high, indicating that known exploits are available. This situation necessitates urgent remediation efforts.
Organizations are urged to conduct thorough assessments to identify any instances of this vulnerability within their systems and to implement mitigation strategies as soon as possible.
Vulnerability Details
CVE-2025-3052 is classified as an arbitrary write vulnerability affecting Microsoft signed UEFI firmware. The official description states: 'An arbitrary write vulnerability in Microsoft signed UEFI firmware allows for code execution of untrusted software. This allows an attacker to control its value, leading to arbitrary memory writes, including modification of critical firmware settings stored in NVRAM.'
The vulnerability has a CVSS score of 8.2, indicating high severity. This score reflects the potential impact on confidentiality, integrity, and availability, all classified as high. The attack vector is local, meaning that physical access to the device is required to exploit this vulnerability. Attack complexity is low, and it requires high privileges, with no user interaction necessary.
Technical Analysis
The root cause of CVE-2025-3052 lies in the design of the UEFI firmware, which allows for arbitrary writes. Attackers can exploit this by manipulating firmware parameters, leading to unintended modifications in critical settings. The attack vector is local, necessitating that an attacker has physical access to the system. The attack complexity is low, as the process does not require extensive technical knowledge beyond the ability to access the firmware.
The exploitation of this vulnerability could have a significant impact on confidentiality, integrity, and availability, all rated as high. If successfully exploited, attackers could modify firmware settings, bypass security mechanisms, and establish persistence, posing a substantial risk to the system.
Risk & Impact Analysis
The real-world deployment risk associated with CVE-2025-3052 is significant. Organizations that utilize Microsoft signed UEFI firmware may be exposed to a wide range of attacks if this vulnerability is not addressed. The potential for attackers to leverage this vulnerability to alter firmware settings increases the blast radius, as it could affect multiple devices and systems within an organization.
Given the high CVSS score and the existence of known exploits, organizations should prioritize remediation efforts. This urgency is further underscored by the potential for widespread impact, as compromised firmware can lead to systemic vulnerabilities across an organization's IT environment.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | Yes |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
Currently, there is no specific version information available for this vulnerability. It is advisable to consider all versions of Microsoft signed UEFI firmware prior to any remediation efforts.
Mitigation & Remediation
Organizations should prioritize patching for Microsoft signed UEFI firmware immediately to mitigate the risks associated with CVE-2025-3052. If a patch is not available, consider implementing the following workarounds:
1. Disable Secure Boot temporarily until a patch can be applied.
2. Ensure that all firmware configurations are set to the most secure settings possible.
3. Monitor systems for any unauthorized changes to firmware settings.
vulnerability management programs and penetration testing methodologies that can help organizations strengthen their security posture.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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