CVE-2026-64174
Vulnerability Scoring
Analysis In Progress
CVE-2026-64174 Vulnerability Analysis & Exploit Details
CVE-2026-64174
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-2026-64174 Details
Status: Received on 19 Jul 2026, 16:17 UTC
Published on: 19 Jul 2026, 16:17 UTC
CVSS Release:
CVE-2026-64174 Vulnerability Summary
CVE-2026-64174: In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: advance loop vars in cfg80211_merge_profile() cfg80211_merge_profile() reassembles a Multi-BSSID non-transmitted BSS profile that has been split across multiple consecutive MBSSID elements. Its while-loop calls cfg80211_get_profile_continuation(ie, ielen, mbssid_elem, sub_elem) but never advances mbssid_elem or sub_elem inside the body. Each iteration therefore searches for a continuation that follows the same fixed pair; the helper returns the same next_mbssid; and the same next_sub bytes are memcpy()'d into merged_ie at a growing offset until the buffer fills. Advance both mbssid_elem and sub_elem to the just-consumed continuation so the next call to cfg80211_get_profile_continuation() searches for a further continuation beyond it (or returns NULL when none exists). A specially-crafted malicious beacon can take advantage of this bug to cause the kernel to spend an excessive amount of time in cfg80211_merge_profile (up to as much as 2ms per beacon received), which could theoretically be abused in some way.
Assessing the Risk of CVE-2026-64174
Access Complexity Graph
The exploitability of CVE-2026-64174 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-2026-64174
No exploitability data is available for CVE-2026-64174.
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-2026-64174, 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-2026-64174, 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-2026-64174 does not compromise confidentiality.
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Integrity:
None
CVE-2026-64174 does not impact data integrity.
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Availability:
None
CVE-2026-64174 does not affect system availability.
CVE-2026-64174 References
External References
- https://git.kernel.org/stable/c/1343a480f84b80c1249133a90ef87f8751d65cbb
- https://git.kernel.org/stable/c/1ced0f5a851f9cae274545a42a06c459b7fd8881
- https://git.kernel.org/stable/c/5817e1e5205498a5df66eba2b34e817f4210fd0f
- https://git.kernel.org/stable/c/67915715fd3874057457363c87c63e18829527df
- https://git.kernel.org/stable/c/6cfae4914439878b8acb35c7e3b40096eeb2ad9c
- https://git.kernel.org/stable/c/7666dbb1bacc4ba522b96740cba7283d243d16e1
- https://git.kernel.org/stable/c/c0bc4c8bd556cbe036a5b9ed333c0aab9aadfcb8
- https://git.kernel.org/stable/c/cedbb608494ba1e7a5c6c56b7f1d3fd470094f28
CWE Common Weakness Enumeration
Unknown
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