CVE-2025-35979
Description
A flaw was found in the kernel. This vulnerability, affecting some Intel(R) Processors, involves shared microarchitectural predictor state that influences transient execution within VMX non-root (guest) operation. An unprivileged software adversary with an authenticated user can exploit this locally to disclose sensitive information. This high-complexity attack requires no user interaction and can lead to significant data exposure.
Statement
This Moderate impact information disclosure flaw affects Intel processors in virtualized environments utilizing VMX non-root (guest) operation. An authenticated, unprivileged local attacker could exploit shared microarchitectural predictor states to transiently execute code and potentially expose sensitive data. The high complexity of the attack reduces its immediate threat.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 5.6 | N/A | N/A |
| Attack Vector | Local | N/A | N/A |
| Attack Complexity | High | N/A | N/A |
| Privileges Required | Low | N/A | N/A |
| User Interaction | None | N/A | N/A |
| Scope | Changed | N/A | N/A |
| Confidentiality | High | N/A | N/A |
| Integrity Impact | None | N/A | N/A |
| Availability Impact | None | N/A | N/A |
Vector
Red Hat: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
Understanding the Weakness (CWE)
Integrity
Technical Impact: Bypass Protection Mechanism
A successful exploitation of this weakness will change the order of an application's execution and will likely be used to bypass specific protection mechanisms. This bypass can be exploited further to potentially read data that should otherwise be unaccessible.
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