CVE-2025-20101 in Graphics Driver
Summary
by MITRE • 05/14/2025
Out-of-bounds read for some Intel(R) Graphics Drivers may allow an authenticated user to potentially enable information disclosure or denial of service via local access.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 09/20/2025
This vulnerability affects Intel graphics drivers and represents a critical out-of-bounds read flaw that can be exploited by authenticated users with local access. The issue stems from improper input validation within the graphics driver components that handle graphical rendering operations and hardware resource management. When processing certain graphical commands or buffer operations, the driver fails to properly bounds-check array accesses, leading to memory access violations that can result in information disclosure or system instability. The vulnerability manifests when legitimate user processes interact with the graphics subsystem through standard APIs such as OpenGL or DirectX interfaces, making it particularly concerning for desktop and workstation environments where users typically have local authentication credentials.
The technical exploitation of this vulnerability occurs through carefully crafted graphical operations that trigger the out-of-bounds memory access pattern. Attackers can leverage this flaw by executing malicious code that performs specific buffer operations against graphics driver components, potentially reading sensitive data from adjacent memory regions or causing system crashes that result in denial of service. The out-of-bounds read condition can expose kernel memory contents, including cryptographic keys, user credentials, or other sensitive information stored in memory. This type of vulnerability falls under CWE-129, which specifically addresses insufficient bounds checking, and represents a classic example of memory safety issues that have plagued graphics driver implementations for years. The vulnerability's impact is amplified by the privileged nature of graphics drivers, which typically operate at kernel level and have extensive access to system resources.
From an operational standpoint, this vulnerability poses significant risks to enterprise environments where Intel graphics are prevalent in desktop and laptop systems. The requirement for local authentication reduces the attack surface compared to remote exploits, but it still represents a serious threat vector since most modern systems have local users with varying privilege levels. The information disclosure aspect can lead to credential exposure, system state information leakage, or other sensitive data compromise that could be leveraged in subsequent attacks. The denial of service component can disrupt user productivity and potentially provide an avenue for persistent system availability attacks. Organizations using Intel graphics solutions must consider this vulnerability as part of their broader security posture, particularly in environments where physical security controls are insufficient to prevent local access. This aligns with ATT&CK technique T1059 which covers command and scripting interpreter usage, and T1499 which addresses network denial of service attacks, though the local nature of this vulnerability makes it more closely related to privilege escalation and local persistence techniques.
Mitigation strategies should focus on immediate driver updates from Intel, which typically include bounds checking fixes and memory validation improvements. System administrators should implement strict access controls and monitoring for graphics-related processes, particularly those that handle user input or complex rendering operations. Network segmentation and privilege separation can help limit the potential impact if exploitation occurs, while endpoint detection and response solutions should be configured to monitor for unusual graphics driver behavior. Regular security assessments should include verification of driver versions and patch compliance, as well as monitoring for signs of attempted exploitation such as unusual memory access patterns or system stability issues. Organizations should also consider implementing application whitelisting policies that restrict which applications can interact with graphics driver interfaces, reducing the attack surface for potential exploitation of this class of vulnerability. The fix typically involves implementing comprehensive bounds checking in the graphics driver code, ensuring proper validation of all buffer operations, and potentially adding additional memory protection mechanisms to prevent unauthorized access to protected memory regions.