CVE-2025-24495: 
Linux Debian vulnerability analysis and mitigation

A security vulnerability (CVE-2025-24495) was discovered in Intel Core Ultra Processors, disclosed on May 13, 2025. The vulnerability involves incorrect initialization of resources in the branch prediction unit that could potentially enable information disclosure. This security flaw specifically affects Intel Core Ultra Processors and requires local access by an authenticated user to exploit (NVD CVE).

The vulnerability has been assigned a CVSS 4.0 Base Score of 6.8 (Medium) with vector CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N, and a CVSS 3.1 Base Score of 5.6 (Medium) with vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N. The technical assessment indicates high attack complexity (AC:H) and requires local access (AV:L) with low privileges (PR:L) (NVD CVE).

The primary impact of this vulnerability is the potential for information disclosure when successfully exploited. The vulnerability requires an authenticated user with local access to the system, and while the high complexity of the attack provides some risk mitigation, the potential for information disclosure remains significant (Wiz).

Intel has released microcode updates to address this vulnerability. Various Linux distributions have implemented fixes, including Ubuntu which has released updates across multiple versions (3.20250512.0ubuntu0.x.xx.x), and Debian which has provided fixed versions (3.20250512.1~deb11u1) for affected systems (Ubuntu).