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

A vulnerability identified as CVE-2025-24495 was discovered in Intel Core Ultra Processors' branch prediction unit. The vulnerability was disclosed on May 13, 2025, and involves incorrect resource initialization that could potentially lead to 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 stems from an incorrect initialization of resources within the branch prediction unit of affected Intel Core Ultra Processors. The severity assessment includes 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 (NVD CVE).

The vulnerability allows for potential information disclosure when successfully exploited. The impact is limited to scenarios where an authenticated user has local access to the affected system. The high complexity (AC:H) of the attack somewhat mitigates the risk, though the potential for information disclosure remains significant (NVD CVE).

Intel has released microcode updates to address this vulnerability. Various Linux distributions have also responded with updates, including Debian which has released fixed versions (3.20250512.1~deb11u1) for affected systems (Debian Tracker).