CVE-2026-98339
8.8 HIGHPublished 2026-10-06 · Updated 2026-10-07
AI risk analysis
- Summary
- This vulnerability in the Linux kernel's cfg80211 module allows a rogue AP to cause the removal of valid BSS entries, leading to potential disconnections and service disruptions.
- Exploitability
- Exploitation requires a rogue AP to trigger the condition, making it moderately difficult. Precondition is the presence of a vulnerable kernel version.
- Blast radius
- If exploited, the impact could be significant, leading to network instability and potential service disruptions for affected devices.
- Detection
- No reliable host or network indicator is derivable from the published description.
- Prioritized remediation
- Upgrade to the Linux kernel version 6.3.11 or later.
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: don't filter by BSS type when removing stale entries When an assoc AP switches to a channel that already has a BSS entry, cfg80211_update_assoc_bss_entry() removes that entry before rehashing the real one, since the two would otherwise collide in the BSS rbtree. The lookup for that entry also required it to match the connection's BSS type, so an entry advertising e.g. the IBSS capability bit was left in place, and the following cfg80211_rehash_bss() then ran into it: WARN_ON(!cmp) Changing the type shouldn't really happen, but can be triggered by a rogue AP/device, so drop the check and remove any entries matching the comparison.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
All references
- https://git.kernel.org/stable/c/0aa44982125c86b47961be5ac1c82eddab8080f3
- https://git.kernel.org/stable/c/1380ee3a202dbb9f8e8b3c3b87eb410450d57799
- https://git.kernel.org/stable/c/64e23a36d8f04811372365b44cfca325f8e0f4bb
- https://git.kernel.org/stable/c/65fdb973bd905bc3f5cb045a04c1828f2d2a7e24
- https://git.kernel.org/stable/c/6d2fd26185678038ef2ea11dd4d2e6eccbf2dd25
- https://git.kernel.org/stable/c/6ef87a853327434ae1cd9c5a2c27a557fb4047fc
- https://git.kernel.org/stable/c/b377e1000d963e7182a987082b4b06580bd7ac84
- https://git.kernel.org/stable/c/fb445ec7480da5d2b82bf681e3b4313603722729
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
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