CVE-2025-20003 in Graphics Driver Software Installer
Summary
by MITRE • 05/14/2025
Improper link resolution before file access ('Link Following') for some Intel(R) Graphics Driver software installers may allow an authenticated user to potentially enable escalation of privilege via local access.
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Analysis
by VulDB Data Team • 09/20/2025
The vulnerability identified as CVE-2025-20003 represents a critical security flaw in Intel(R) Graphics Driver software installers that stems from improper link resolution before file access operations. This issue specifically affects the installer components used to deploy graphics driver software on systems running Intel graphics hardware. The vulnerability manifests when the installer processes symbolic links or hard links without adequate validation of their target paths, creating a potential attack vector for privilege escalation. The flaw is particularly concerning because it requires only authenticated user access to potentially exploit, meaning any user with login credentials on the affected system could leverage this weakness to gain elevated privileges.
This vulnerability aligns with CWE-59, which describes improper link resolution before file access, a category that encompasses various forms of link following attacks including symbolic link manipulation and hard link exploitation. The technical implementation flaw occurs during the installation process where the installer routine fails to properly validate or sanitize file paths that contain symbolic links, potentially allowing an attacker to redirect file operations to unintended locations. The installer's failure to resolve links properly creates an environment where malicious actors can manipulate the installation flow by placing carefully crafted symbolic links in strategic locations, thereby enabling them to overwrite or modify system-critical files with elevated privileges. This type of vulnerability is classified under the ATT&CK technique T1068, which covers "Exploitation for Privilege Escalation" and specifically targets weaknesses in software installation and update processes.
The operational impact of CVE-2025-20003 extends beyond simple privilege escalation as it represents a fundamental flaw in how the installer handles file system operations. An authenticated user with local access could potentially leverage this vulnerability to modify the graphics driver installation process itself, leading to persistent backdoors or system compromise. The vulnerability is particularly dangerous because graphics drivers often require elevated privileges to install and operate, making the privilege escalation achieved through this flaw potentially permanent. Additionally, since graphics drivers are frequently updated and installed on systems, the window of opportunity for exploitation is significant, as users regularly perform installation activities that could be intercepted or manipulated by attackers. The installation process typically requires administrator privileges, but the vulnerability allows a regular user to potentially bypass these protections through link manipulation, creating a dangerous escalation path that could ultimately allow complete system compromise.
Mitigation strategies for CVE-2025-20003 should focus on both immediate protective measures and long-term architectural improvements. System administrators should ensure that all Intel graphics driver installations are performed with the latest available patches and updates from Intel, as this vulnerability is likely to be addressed through official driver releases. The recommended approach includes implementing strict file system permissions and access controls to prevent unauthorized symbolic link creation in installation directories. Organizations should also consider disabling unnecessary user access to installation directories and implementing file integrity monitoring solutions that can detect unauthorized link manipulation. Network administrators should monitor for unusual installation activities and ensure that the principle of least privilege is enforced throughout the system, particularly regarding user accounts that might interact with driver installation processes. The vulnerability demonstrates the critical importance of proper input validation and path resolution in installer software, highlighting that all installation components should validate symbolic links and resolve them to their actual targets before proceeding with file operations. Security teams should also consider implementing automated scanning tools that can detect the presence of symbolic links in installation paths and alert administrators to potential manipulation attempts.