CVE-2026-63967
Vulnerability Scoring
Analysis In Progress
CVE-2026-63967 Vulnerability Analysis & Exploit Details
CVE-2026-63967
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-2026-63967 Details
Status: Received on 19 Jul 2026, 16:17 UTC
Published on: 19 Jul 2026, 16:17 UTC
CVSS Release:
CVE-2026-63967 Vulnerability Summary
CVE-2026-63967: In the Linux kernel, the following vulnerability has been resolved: iio: imu: st_lsm6dsx: fix stack leak in tagged FIFO buffer The tagged FIFO path declares iio_buff on the stack with __aligned(8) but no initializer, but there is a hole in the structure, which will then leak to userspace as ST_LSM6DSX_SAMPLE_SIZE bytes (6) will be copied, but the space between that and the timestamp are not initialized. Commit c14edb4d0bdc ("iio:imu:st_lsm6dsx Fix alignment and data leak issues") moved the untagged FIFO path to a kzalloc'd buffer in hw->scan, but for the tagged path it only added the alignment qualifier and not the initializer :( Fix this by just zero-initializing the structure on the stack.
Assessing the Risk of CVE-2026-63967
Access Complexity Graph
The exploitability of CVE-2026-63967 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-2026-63967
No exploitability data is available for CVE-2026-63967.
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-2026-63967, 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-2026-63967, 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-2026-63967 does not compromise confidentiality.
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Integrity:
None
CVE-2026-63967 does not impact data integrity.
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Availability:
None
CVE-2026-63967 does not affect system availability.
CVE-2026-63967 References
External References
- https://git.kernel.org/stable/c/3147b303b8c7d9f91da4b849ece33b45048f5eaf
- https://git.kernel.org/stable/c/890d0312d5f94be43eac21f5a34d3bccc60d051b
- https://git.kernel.org/stable/c/babf1943a40bb5669db57d30ca16c22504b18e07
- https://git.kernel.org/stable/c/c9d8e9adaa63150ef7e833480b799d0bab83a276
- https://git.kernel.org/stable/c/d42ac0bfb6a16617c62a59d53706579c7fadbfa6
- https://git.kernel.org/stable/c/e6bb3a49c5f9de870ea95e69775df785728e3366
- https://git.kernel.org/stable/c/fe1a7f99e72ebd2880515332b79b8c256be22aca
- https://git.kernel.org/stable/c/ff8d3c088b77b11782f2c3b97e37425be050e8de
CWE Common Weakness Enumeration
Unknown
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