CVE-2026-93278
Vulnerability Scoring
Analysis In Progress
CVE-2026-93278 Vulnerability Analysis & Exploit Details
CVE-2026-93278
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-2026-93278 Details
Status: Received on 24 Sep 2026, 16:17 UTC
Published on: 24 Sep 2026, 16:17 UTC
CVSS Release:
CVE-2026-93278 Vulnerability Summary
CVE-2026-93278: In the Linux kernel, the following vulnerability has been resolved: staging: octeon: add missing napi_disable in cvm_oct_rx_shutdown cvm_oct_rx_shutdown calls free_irq and netif_napi_del without disabling the napi instance first. As the free_irq only waits for completion of hard interrupt handlers, the napi poll function could still be active. If cvm_oct_remove proceeds to free the plat structure (which holds the NAPI instances), the active poll function will access freed memory, resulting in a use-after-free crash.
Assessing the Risk of CVE-2026-93278
Access Complexity Graph
The exploitability of CVE-2026-93278 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-2026-93278
No exploitability data is available for CVE-2026-93278.
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-2026-93278, 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-2026-93278, 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-2026-93278 does not compromise confidentiality.
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Integrity:
None
CVE-2026-93278 does not impact data integrity.
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Availability:
None
CVE-2026-93278 does not affect system availability.
CVE-2026-93278 References
External References
- https://git.kernel.org/stable/c/158389d7af04bbf0664d91c2ce31fcc9eeace1eb
- https://git.kernel.org/stable/c/89f9f433271fad9351de6a3c713b45b2cfb23e4a
- https://git.kernel.org/stable/c/98f9036b2254c928cb44da0c77dba38f66f7d8f1
- https://git.kernel.org/stable/c/b2243ffaac14cc3639b5b32a371aac37f96ee554
- https://git.kernel.org/stable/c/b38fbd68cc36b4f478a1e3cfc169b8616ae1337d
- https://git.kernel.org/stable/c/c0a9a8586a63fda49e61a6b83360feac2a60d898
- https://git.kernel.org/stable/c/c124049c3a7006fd6caf629139a5722610bbffb4
CWE Common Weakness Enumeration
Unknown
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