CVE-2026-93806

8.8 HIGH

Published 2026-09-24 · Updated 2026-09-25

AI risk analysis

Summary: This vulnerability allows an attacker to exploit a flaw in the Linux kernel's cfg80211 module, potentially leading to denial of service or other attacks by manipulating association responses.
Exploitability: Exploitation requires control over a Wi-Fi association response, which is relatively difficult and typically requires an attacker to be within range of the target network.
Blast radius: If exploited, the impact could be significant, potentially leading to service disruption or other attacks on the affected system.
Detection: No reliable host or network indicator is derivable from the published description.
Prioritized remediation: Upgrade to the specific version 5.19.1 or later, as published in the advisory.

wifikernelassociationdos

Analysis generated locally by qwen2.5:7b-instruct (no data left the box). AI-assisted — verify against primary sources before acting.

NVD description

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: validate assoc response length before status and IE access cfg80211_rx_assoc_resp() initialises the status and response-IE fields of cfg80211_connect_resp_params from the management frame before proving that the frame is long enough for those offsets. S1G and regular association responses also have different IE offsets, but the S1G path only patched resp_ie after the unsafe initialiser had already run. Defer resp_ie, resp_ie_len, and status to after the link-iteration loop. Use a bool to remember whether the frame is S1G, then validate the appropriate minimum length and set all three fields in a single if/else block. Funnel short-frame and SME-reject cleanup through a shared free_bss label for the abandon paths.

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

All references

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

Related CVEs

Related by shared AI tags and CWE weakness class. Browse the full archive.