CVE-2025-68288
Vulnerability Scoring
Analysis In Progress
CVE-2025-68288 Vulnerability Analysis & Exploit Details
CVE-2025-68288
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-2025-68288 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-2025-68288 Vulnerability Summary
CVE-2025-68288: In the Linux kernel, the following vulnerability has been resolved: usb: storage: Fix memory leak in USB bulk transport A kernel memory leak was identified by the 'ioctl_sg01' test from Linux Test Project (LTP). The following bytes were mainly observed: 0x53425355. When USB storage devices incorrectly skip the data phase with status data, the code extracts/validates the CSW from the sg buffer, but fails to clear it afterwards. This leaves status protocol data in srb's transfer buffer, such as the US_BULK_CS_SIGN 'USBS' signature observed here. Thus, this can lead to USB protocols leaks to user space through SCSI generic (/dev/sg*) interfaces, such as the one seen here when the LTP test requested 512 KiB. Fix the leak by zeroing the CSW data in srb's transfer buffer immediately after the validation of devices that skip data phase. Note: Differently from CVE-2018-1000204, which fixed a big leak by zero- ing pages at allocation time, this leak occurs after allocation, when USB protocol data is written to already-allocated sg pages.
Assessing the Risk of CVE-2025-68288
Access Complexity Graph
The exploitability of CVE-2025-68288 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-2025-68288
No exploitability data is available for CVE-2025-68288.
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-2025-68288, 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-2025-68288, 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-2025-68288 does not compromise confidentiality.
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Integrity:
None
CVE-2025-68288 does not impact data integrity.
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Availability:
None
CVE-2025-68288 does not affect system availability.
CVE-2025-68288 References
External References
- https://git.kernel.org/stable/c/0f18eac44c5668204bf6eebb01ddb369ac56932b
- https://git.kernel.org/stable/c/41e99fe2005182139b1058db71f0d241f8f0078c
- https://git.kernel.org/stable/c/467fec3cefbeb9e3ea80f457da9a5666a71ca0d0
- https://git.kernel.org/stable/c/4ba515dfff7eeca369ab85cdbb3f3b231c71720c
- https://git.kernel.org/stable/c/5b815ddb3f5560fac35b16de3a2a22d5f81c5993
- https://git.kernel.org/stable/c/83f0241959831586d9b6d47f6bd5d3dec8f43bf0
- https://git.kernel.org/stable/c/cb1401b5bcc2feb5b038fc4b512e5968b016e05e
CWE Common Weakness Enumeration
Unknown
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