CVE-2025-38466
Vulnerability Scoring
Analysis In Progress
CVE-2025-38466 Vulnerability Analysis & Exploit Details
CVE-2025-38466
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-2025-38466 Details
Status: Received on 25 Jul 2025, 16:15 UTC
Published on: 25 Jul 2025, 16:15 UTC
CVSS Release:
CVE-2025-38466 Vulnerability Summary
CVE-2025-38466: In the Linux kernel, the following vulnerability has been resolved: perf: Revert to requiring CAP_SYS_ADMIN for uprobes Jann reports that uprobes can be used destructively when used in the middle of an instruction. The kernel only verifies there is a valid instruction at the requested offset, but due to variable instruction length cannot determine if this is an instruction as seen by the intended execution stream. Additionally, Mark Rutland notes that on architectures that mix data in the text segment (like arm64), a similar things can be done if the data word is 'mistaken' for an instruction. As such, require CAP_SYS_ADMIN for uprobes.
Assessing the Risk of CVE-2025-38466
Access Complexity Graph
The exploitability of CVE-2025-38466 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-2025-38466
No exploitability data is available for CVE-2025-38466.
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-2025-38466, 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-2025-38466, 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-2025-38466 does not compromise confidentiality.
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Integrity:
None
CVE-2025-38466 does not impact data integrity.
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Availability:
None
CVE-2025-38466 does not affect system availability.
CVE-2025-38466 References
External References
- https://git.kernel.org/stable/c/183bdb89af1b5193b1d1d9316986053b15ca6fa4
- https://git.kernel.org/stable/c/8e8bf7bc6aa6f583336c2fda280b6cea0aed5612
- https://git.kernel.org/stable/c/a0a8009083e569b5526c64f7d3f2a62baca95164
- https://git.kernel.org/stable/c/ba677dbe77af5ffe6204e0f3f547f3ba059c6302
- https://git.kernel.org/stable/c/c0aec35f861fa746ca45aa816161c74352e6ada8
- https://git.kernel.org/stable/c/d5074256b642cdeb46a70ce2f15193e766edca68
- https://git.kernel.org/stable/c/d7ef1afd5b3f43f4924326164cee5397b66abd9c
CWE Common Weakness Enumeration
Unknown
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