CVE-2026-72004
Vulnerability Scoring
Analysis In Progress
CVE-2026-72004 Vulnerability Analysis & Exploit Details
CVE-2026-72004
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-2026-72004 Details
Status: Received on 15 Aug 2026, 06:20 UTC
Last updated: 🕕 17 Aug 2026, 06:17 UTC
Originally published on: 🕕 15 Aug 2026, 06:20 UTC
Time between publication and last update: 1 days
CVSS Release:
CVE-2026-72004 Vulnerability Summary
CVE-2026-72004: In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix memory leak in ieee80211_register_hw() If kmemdup() fails while copying supported band structures, the error path jumps to fail_rate. This skips rate_control_deinitialize() and leaks the initialized local->rate_ctrl. Fix this by adding a fail_band label that shares the rate-control cleanup path before falling through to the remaining teardown. The bug was first flagged by an experimental analysis tool we are developing for kernel memory-management bugs while analyzing v6.13-rc1. The tool is still under development and is not yet publicly available. Manual inspection confirms that the bug is still present in v7.1-rc7. An x86_64 allyesconfig build showed no new warnings. As we do not have a suitable mac80211 device/driver combination to test with, no runtime testing was able to be performed.
Assessing the Risk of CVE-2026-72004
Access Complexity Graph
The exploitability of CVE-2026-72004 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-2026-72004
No exploitability data is available for CVE-2026-72004.
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-2026-72004, 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-2026-72004, 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-2026-72004 does not compromise confidentiality.
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Integrity:
None
CVE-2026-72004 does not impact data integrity.
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Availability:
None
CVE-2026-72004 does not affect system availability.
CVE-2026-72004 References
External References
- https://git.kernel.org/stable/c/08b71bd92317f99642b842cfc0d30200868162fc
- https://git.kernel.org/stable/c/3d8b9b290421c3cd505fcd2f551f143f8142786a
- https://git.kernel.org/stable/c/45e9ac538cdff7bce656d731114a64eda85af0d7
- https://git.kernel.org/stable/c/95fc02722edde02946d0d475221f2b2054d3d8ba
- https://git.kernel.org/stable/c/a02b52fe54f7b5107aefa1ce28c2f69749c57616
- https://git.kernel.org/stable/c/a7584f261e64fe14e45bdf70f343e16c1ee3a037
- https://git.kernel.org/stable/c/bdc0b8bfdc142439d6708b072e8159eb515ee7b0
- https://git.kernel.org/stable/c/f01eec75fd372961550b928902f3a2c11fca1daf
CWE Common Weakness Enumeration
Unknown
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