Introduction
Privilege escalation on enterprise Linux servers can undermine network segmentation and expose sensitive workloads. CVE-2025-24325 affects the Linux kernel-mode driver for Intel 800 Series Ethernet controllers, a critical component in modern data centers and cloud infrastructure. In driver versions before 1.17.2, improper input validation may allow an authenticated local user to gain elevated privileges.
About Intel and the 800 Series Ethernet Controllers: Intel is one of the world's leading semiconductor manufacturers, and its networking hardware is deployed across a vast number of enterprise and cloud environments. The 800 Series Ethernet family provides high-performance networking for servers, storage, and infrastructure, so a flaw in its drivers has outsized consequences for operational security and uptime.
Technical Information
CVE-2025-24325 is an improper input validation flaw in the Linux kernel-mode driver for Intel 800 Series Ethernet controllers, classified as CWE-20 (Improper Input Validation). It is present in driver versions prior to 1.17.2.
An authenticated user with local access can send malformed input to the driver. If the driver does not validate that input correctly, it may process unintended or malicious data, which results in privilege escalation. The vulnerable code sits in privileged paths inside the driver, which raises the risk of system compromise if the flaw is exploited. As of this writing, no public code snippets or detailed exploit vectors are available.
Affected Systems and Versions
- Intel 800 Series Ethernet Linux kernel-mode driver, versions before 1.17.2
- Only Linux systems using these drivers are affected
- All configurations using affected driver versions are vulnerable
Vendor Security History
Intel has previously fixed similar input validation vulnerabilities in its networking drivers, including ones in the Intel 700 Series Ethernet family. The company follows coordinated disclosure practices and usually releases patches and advisories promptly. Even so, how often vulnerabilities have turned up recently in Intel's networking stack shows that secure driver development remains a persistent problem.
