CVE-2025-68312
Vulnerability Scoring
Analysis In Progress
CVE-2025-68312 Vulnerability Analysis & Exploit Details
CVE-2025-68312
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-2025-68312 Details
Status: Awaiting Analysis
Last updated: 🕒 18 Dec 2025, 15:08 UTC
Originally published on: 🕓 16 Dec 2025, 16:16 UTC
Time between publication and last update: 1 days
CVSS Release:
CVE-2025-68312 Vulnerability Summary
CVE-2025-68312: In the Linux kernel, the following vulnerability has been resolved: usbnet: Prevents free active kevent The root cause of this issue are: 1. When probing the usbnet device, executing usbnet_link_change(dev, 0, 0); put the kevent work in global workqueue. However, the kevent has not yet been scheduled when the usbnet device is unregistered. Therefore, executing free_netdev() results in the "free active object (kevent)" error reported here. 2. Another factor is that when calling usbnet_disconnect()->unregister_netdev(), if the usbnet device is up, ndo_stop() is executed to cancel the kevent. However, because the device is not up, ndo_stop() is not executed. The solution to this problem is to cancel the kevent before executing free_netdev().
Assessing the Risk of CVE-2025-68312
Access Complexity Graph
The exploitability of CVE-2025-68312 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-2025-68312
No exploitability data is available for CVE-2025-68312.
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-2025-68312, 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-2025-68312, 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-2025-68312 does not compromise confidentiality.
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Integrity:
None
CVE-2025-68312 does not impact data integrity.
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Availability:
None
CVE-2025-68312 does not affect system availability.
CVE-2025-68312 References
External References
- https://git.kernel.org/stable/c/285d4b953f2ca03c358f986718dd89ee9bde632e
- https://git.kernel.org/stable/c/2ce1de32e05445d77fc056f6ff8339cfb78a5f84
- https://git.kernel.org/stable/c/3a10619fdefd3051aeb14860e4d4335529b4e94d
- https://git.kernel.org/stable/c/420c84c330d1688b8c764479e5738bbdbf0a33de
- https://git.kernel.org/stable/c/43005002b60ef3424719ecda16d124714b45da3b
- https://git.kernel.org/stable/c/5158fb8da162e3982940f30cd01ed77bdf42c6fc
- https://git.kernel.org/stable/c/88a38b135d69f5db9024ff6527232f1b51be8915
- https://git.kernel.org/stable/c/9a579d6a39513069d298eee70770bbac8a148565
CWE Common Weakness Enumeration
Unknown
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