CVE-2025-39937
Vulnerability Scoring
Analysis In Progress
CVE-2025-39937 Vulnerability Analysis & Exploit Details
CVE-2025-39937
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-2025-39937 Details
Status: Received on 04 Oct 2025, 08:15 UTC
Published on: 04 Oct 2025, 08:15 UTC
CVSS Release:
CVE-2025-39937 Vulnerability Summary
CVE-2025-39937: In the Linux kernel, the following vulnerability has been resolved: net: rfkill: gpio: Fix crash due to dereferencering uninitialized pointer Since commit 7d5e9737efda ("net: rfkill: gpio: get the name and type from device property") rfkill_find_type() gets called with the possibly uninitialized "const char *type_name;" local variable. On x86 systems when rfkill-gpio binds to a "BCM4752" or "LNV4752" acpi_device, the rfkill->type is set based on the ACPI acpi_device_id: rfkill->type = (unsigned)id->driver_data; and there is no "type" property so device_property_read_string() will fail and leave type_name uninitialized, leading to a potential crash. rfkill_find_type() does accept a NULL pointer, fix the potential crash by initializing type_name to NULL. Note likely sofar this has not been caught because: 1. Not many x86 machines actually have a "BCM4752"/"LNV4752" acpi_device 2. The stack happened to contain NULL where type_name is stored
Assessing the Risk of CVE-2025-39937
Access Complexity Graph
The exploitability of CVE-2025-39937 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-2025-39937
No exploitability data is available for CVE-2025-39937.
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-2025-39937, 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-2025-39937, 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-2025-39937 does not compromise confidentiality.
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Integrity:
None
CVE-2025-39937 does not impact data integrity.
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Availability:
None
CVE-2025-39937 does not affect system availability.
CVE-2025-39937 References
External References
- https://git.kernel.org/stable/c/184f608a68f96794e8fe58cd5535014d53622cde
- https://git.kernel.org/stable/c/21a39b958b4bcf44f7674bfbbe1bbb8cad0d842d
- https://git.kernel.org/stable/c/21ba85d9d508422ca9e6698463ff9357c928c22d
- https://git.kernel.org/stable/c/47ade5f9d70b23a119ec20b1c6504864b2543a79
- https://git.kernel.org/stable/c/689aee35ce671aab752f159e5c8e66d7685e6887
- https://git.kernel.org/stable/c/8793e7a8e1b60131a825457174ed6398111daeb7
- https://git.kernel.org/stable/c/ada2282259243387e6b6e89239aeb4897e62f051
- https://git.kernel.org/stable/c/b6f56a44e4c1014b08859dcf04ed246500e310e5
CWE Common Weakness Enumeration
Unknown
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