CVE-2026-98182

Host crash via queue-less active monitor interface

Published Oct 6, 2026 · Updated Oct 6, 2026

A local denial of service in Linux kernel mac80211 allows local users with CAP_NET_ADMIN to crash the host via a down monitor interface. The ieee80211_set_mon_options path accepts MONITOR_FLAG_ACTIVE without checking for a transmit queue allocated only when a monitor is created active, so affected drivers dereference the missing queue when the interface opens. Exploitation requires a driver that supports active monitoring and permission to change interface settings; the resulting kernel fault interrupts the host.

CVSS severityUnavailable
Unscored
EPSS probability0.18%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A local denial of service in Linux kernel mac80211 allows local users with CAP_NET_ADMIN to crash the host via a down monitor interface. The ieee80211_set_mon_options path accepts MONITOR_FLAG_ACTIVE without checking for a transmit queue allocated only when a monitor is created active, so affected drivers dereference the missing queue when the interface opens. Exploitation requires a driver that supports active monitoring and permission to change interface settings; the resulting kernel fault interrupts the host.

The record

CVE
CVE-2026-98182
Published
Oct 6, 2026
Updated
Oct 6, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Oct 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 6, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.15
  2. Affected versionversion=79af1f866193de29e65a4dba7d0dab14b0c0ff93 <2b04d6556964ae9f89819b86a0a7801e39c3aae5
  3. Affected versionversion=79af1f866193de29e65a4dba7d0dab14b0c0ff93 <46c223468537a05a404699771cd3e68532dab5e6
  4. Affected versionversion=79af1f866193de29e65a4dba7d0dab14b0c0ff93 <abe15e643e576459469867758ae9c586a7bab95d
  5. Affected versionversion=79af1f866193de29e65a4dba7d0dab14b0c0ff93 <b7b7d46ec4fa127767931938b282c361c0519af6

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

The Linux Kernel Organization · Linuxversion=4.15; version=79af1f866193de29e65a4dba7d0dab14b0c0ff93 <2b04d6556964ae9f89819b86a0a7801e39c3aae5; version=79af1f866193de29e65a4dba7d0dab14b0c0ff93 <46c223468537a05a404699771cd3e68532dab5e6; version=79af1f866193de29e65a4dba7d0dab14b0c0ff93 <abe15e643e576459469867758ae9c586a7bab95d; version=79af1f866193de29e65a4dba7d0dab14b0c0ff93 <b7b7d46ec4fa127767931938b282c361c0519af6

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

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No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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