CVE-2025-40194
Vulnerability Scoring
Analysis In Progress
CVE-2025-40194 Vulnerability Analysis & Exploit Details
CVE-2025-40194
Attack Complexity Details
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Attack Complexity:
Attack Complexity Analysis In Progress
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Attack Vector:
Attack Vector Under Analysis
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Privileges Required:
None
No authentication is required for exploitation.
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Scope:
Impact is confined to the initially vulnerable component.
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User Interaction:
None
No user interaction is necessary for exploitation.
CVE-2025-40194 Details
Status: Awaiting Analysis
Last updated: 🕟 14 Nov 2025, 16:42 UTC
Originally published on: 🕙 12 Nov 2025, 22:15 UTC
Time between publication and last update: 1 days
CVSS Release:
CVE-2025-40194 Vulnerability Summary
CVE-2025-40194: In the Linux kernel, the following vulnerability has been resolved: cpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request() The cpufreq_cpu_put() call in update_qos_request() takes place too early because the latter subsequently calls freq_qos_update_request() that indirectly accesses the policy object in question through the QoS request object passed to it. Fortunately, update_qos_request() is called under intel_pstate_driver_lock, so this issue does not matter for changing the intel_pstate operation mode, but it theoretically can cause a crash to occur on CPU device hot removal (which currently can only happen in virt, but it is formally supported nevertheless). Address this issue by modifying update_qos_request() to drop the reference to the policy later.
Assessing the Risk of CVE-2025-40194
Access Complexity Graph
The exploitability of CVE-2025-40194 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).
Exploitability Analysis for CVE-2025-40194
No exploitability data is available for CVE-2025-40194.
Understanding AC and PR
A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.
Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.
Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.
CVSS Score Breakdown Chart
Above is the CVSS Sub-score Breakdown for CVE-2025-40194, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.
CIA Impact Analysis
Below is the Impact Analysis for CVE-2025-40194, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.
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Confidentiality:
None
CVE-2025-40194 does not compromise confidentiality.
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Integrity:
None
CVE-2025-40194 does not impact data integrity.
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Availability:
None
CVE-2025-40194 does not affect system availability.
CVE-2025-40194 References
External References
- https://git.kernel.org/stable/c/0a58d3e77b22b087a57831c87cafd360e144a5bd
- https://git.kernel.org/stable/c/15ac9579ebdaf22a37d7f60b3a8efc1029732ef9
- https://git.kernel.org/stable/c/57e4a6aadf12578b96a038373cffd54b3a58b092
- https://git.kernel.org/stable/c/69a18ff6c60e8e113420f15355fad862cb45d38e
- https://git.kernel.org/stable/c/69e5d50fcf4093fb3f9f41c4f931f12c2ca8c467
- https://git.kernel.org/stable/c/ad4e8f9bdbef11a19b7cb93e7f313bf59bdcc3b4
- https://git.kernel.org/stable/c/ba63d4e9857a72a89e71a4eff9f2cc8c283e94c3
- https://git.kernel.org/stable/c/bc26564bcc659beb6d977cd6eb394041ec2f2851
CWE Common Weakness Enumeration
Unknown
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