CVE-2026-74322

Kernel crash via injected Wi-Fi frame metadata

Published Aug 15, 2026 · Updated Aug 15, 2026

NULL pointer dereference in affected Linux kernel releases starting with 6.15 allows local users to crash the system via injected Wi-Fi frames. mt7996_mac_write_txwi_80211 passes a possibly NULL info->control.vif pointer to ieee80211_vif_is_mld without first checking it. Reachability requires local access capable of injecting radiotap frames through an affected MT7996 Wi-Fi path; the bounded consequence is a system crash.

CVSS severity5.5
Medium
EPSS probability0.17%
Next 30 days · Sep 17, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in affected Linux kernel releases starting with 6.15 allows local users to crash the system via injected Wi-Fi frames. mt7996_mac_write_txwi_80211 passes a possibly NULL info->control.vif pointer to ieee80211_vif_is_mld without first checking it. Reachability requires local access capable of injecting radiotap frames through an affected MT7996 Wi-Fi path; the bounded consequence is a system crash.

The record

CVE
CVE-2026-74322
Published
Aug 15, 2026
Updated
Aug 15, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499.004
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Aug 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 15, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=6.15
  2. Affected versionversion=f0b0b239b8f36cdc55cf0bc1bac75ec07fc9fef1 <61370e6674b5253de5686813ceeceebc35a7d3e5
  3. Affected versionversion=f0b0b239b8f36cdc55cf0bc1bac75ec07fc9fef1 <63e6151b9791b31877a88ff62806e7c407683955
  4. Affected versionversion=f0b0b239b8f36cdc55cf0bc1bac75ec07fc9fef1 <dfb27e5dd9e4d34fbb74fa834c644dcef0be2be9

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=6.15; version=f0b0b239b8f36cdc55cf0bc1bac75ec07fc9fef1 <61370e6674b5253de5686813ceeceebc35a7d3e5; version=f0b0b239b8f36cdc55cf0bc1bac75ec07fc9fef1 <63e6151b9791b31877a88ff62806e7c407683955; version=f0b0b239b8f36cdc55cf0bc1bac75ec07fc9fef1 <dfb27e5dd9e4d34fbb74fa834c644dcef0be2be9

Published CVSS scores

5.5SUSECVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 11, 2026Sep 17, 2026
Latest reporting daySep 17, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499.004Application 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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