Go to homepageCyberStrike

Menu

Star on GitHub · 3.4k
Sign inDownload

CVE-2026-98339

8.8 · HIGH

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…

Published Oct 6, 2026EPSS 0.28%

Overview

CVE-2026-98339 is a high-severity vulnerability. It was published on October 6, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/0aa44982125c86b47961be5ac1c82eddab8080f3Refgit.kernel.org/stable/c/1380ee3a202dbb9f8e8b3c3b87eb410450d57799Refgit.kernel.org/stable/c/64e23a36d8f04811372365b44cfca325f8e0f4bbRefgit.kernel.org/stable/c/65fdb973bd905bc3f5cb045a04c1828f2d2a7e24Refgit.kernel.org/stable/c/6d2fd26185678038ef2ea11dd4d2e6eccbf2dd25Refgit.kernel.org/stable/c/6ef87a853327434ae1cd9c5a2c27a557fb4047fcRefgit.kernel.org/stable/c/b377e1000d963e7182a987082b4b06580bd7ac84Refgit.kernel.org/stable/c/fb445ec7480da5d2b82bf681e3b4313603722729

How CyberStrike helps

Frequently asked questions

What is CVE-2026-98339?

CVE-2026-98339 is a high-severity vulnerability. It was published on October 6, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-98339?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-98339?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-98339?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-98339 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

Related HIGH CVEs from 2026

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999
LiveWatch live →