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CVE-2026-98339

wifi: cfg80211: don't filter by BSS type when removing stale entries

No known exploitation. EPSS puts it in the 19th percentile. Fixed versions are out.

CVSS 3.18.8HighEPSS percentile19th0.3% chance in 30 daysCISA KEVNot listedNo confirmed exploitation
No public exploit knownFix1 product4 fixed builds listed below

Published Updated Sources: CVE.org, NVD

NVD CVE.org

What to do

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  • LinuxAffected: ≥ 0afd425b1b64251f19b5d8d8b49bf56fefbc643f, < 6ef87a853327434ae1cd9c5a2c27a557fb4047fcUpgrade to: 6ef87a853327434ae1cd9c5a2c27a557fb4047fcAffected: ≥ 0afd425b1b64251f19b5d8d8b49bf56fefbc643f, < 1380ee3a202dbb9f8e8b3c3b87eb410450d57799Upgrade to: 1380ee3a202dbb9f8e8b3c3b87eb410450d57799Affected: ≥ 0afd425b1b64251f19b5d8d8b49bf56fefbc643f, < fb445ec7480da5d2b82bf681e3b4313603722729Upgrade to: fb445ec7480da5d2b82bf681e3b4313603722729Affected: ≥ 0afd425b1b64251f19b5d8d8b49bf56fefbc643f, < 65fdb973bd905bc3f5cb045a04c1828f2d2a7e24Upgrade to: 65fdb973bd905bc3f5cb045a04c1828f2d2a7e24 + 4 more branchesStated by: CVE record

Versions as the sources state them. Full version matrix after sign-in

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What it is

From the CVE record

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.

In plain language

No plain-language summary for this CVE yet.

Exploitation

Where each signal puts this CVE on the scale from published to confirmed exploited.

EPSS19th
CISA KEV

Not in the catalog. CISA has not confirmed exploitation.

Public exploits

No public exploit or proof of concept found in the sources we track.

EPSS

0.3% chance of exploitation activity in the next 30 days, which ranks it in the 19th percentile of scored CVEs.

Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.

Lifecycle

3 events over 1 day, from the signal feeds we watch.

  1. Record updated
  2. Publishedrecord updated

Affected products

Technical detail

CVSS 3.1 vector

Open in the CVSS calculator

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

Scored 8.8 by NVD.

How it is reached

  • Attack Vector AdjacentRequires access to the local network (e.g. same Wi-Fi, Bluetooth)
  • Attack Complexity LowNo special conditions — the attack can be reliably reproduced
  • Privileges Required NoneNo authentication required — anyone can exploit this
  • User Interaction NoneNo user interaction needed — fully automated exploitation

Scope

  • Scope UnchangedImpact is limited to the vulnerable component itself

Impact if exploited

  • Confidentiality HighTotal information disclosure — all data in the component is compromised
  • Integrity HighTotal loss of integrity — attacker can modify any data in the component
  • Availability HighTotal denial of service — the component is completely unavailable

Sources

References in the record

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In the news

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