CVE-2026-43428
Vulnerability Scoring
Analysis In Progress
CVE-2026-43428 Vulnerability Analysis & Exploit Details
CVE-2026-43428
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-2026-43428 Details
Status: Received on 08 May 2026, 15:16 UTC
Published on: 08 May 2026, 15:16 UTC
CVSS Release:
CVE-2026-43428 Vulnerability Summary
CVE-2026-43428: In the Linux kernel, the following vulnerability has been resolved: USB: core: Limit the length of unkillable synchronous timeouts The usb_control_msg(), usb_bulk_msg(), and usb_interrupt_msg() APIs in usbcore allow unlimited timeout durations. And since they use uninterruptible waits, this leaves open the possibility of hanging a task for an indefinitely long time, with no way to kill it short of unplugging the target device. To prevent this sort of problem, enforce a maximum limit on the length of these unkillable timeouts. The limit chosen here, somewhat arbitrarily, is 60 seconds. On many systems (although not all) this is short enough to avoid triggering the kernel's hung-task detector. In addition, clear up the ambiguity of negative timeout values by treating them the same as 0, i.e., using the maximum allowed timeout.
Assessing the Risk of CVE-2026-43428
Access Complexity Graph
The exploitability of CVE-2026-43428 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-2026-43428
No exploitability data is available for CVE-2026-43428.
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-2026-43428, 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-2026-43428, 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-2026-43428 does not compromise confidentiality.
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Integrity:
None
CVE-2026-43428 does not impact data integrity.
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Availability:
None
CVE-2026-43428 does not affect system availability.
CVE-2026-43428 References
External References
- https://git.kernel.org/stable/c/06d2bbc4c66c6b0e8a43728c4949026026a5be67
- https://git.kernel.org/stable/c/1015c27a5e1a63efae2b18a9901494474b4d1dc3
- https://git.kernel.org/stable/c/24b31a227f679a942d820840a4dea7f0c09a387f
- https://git.kernel.org/stable/c/2d34cb4d1d6283b4be9c78f4a83ed6956d3069ec
- https://git.kernel.org/stable/c/4e86f5b79e62ded7e3c3ebd688cf5775e618148a
- https://git.kernel.org/stable/c/64f3d75633aedc12bdff220e9a4337177430bd9d
- https://git.kernel.org/stable/c/659c0c7d50a4b0f6aa197c4c098cfd91daf63862
- https://git.kernel.org/stable/c/6c62935670acdbb7687ced20494923b66fbb0367
CWE Common Weakness Enumeration
Unknown
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