CVE-2025-22032

Kernel crash via uninitialized mt7921 station link

Published Apr 16, 2025 · Updated May 23, 2026

NULL pointer dereference in the mt76 mt7921 driver in affected Linux kernels allows local users to crash the kernel during receive processing. The mt792x_rx_get_wcid function dereferences a deflink structure that was not initialized with its station context. The condition requires low-privileged local access and an active MediaTek MT7921 device; the bounded consequence is a kernel panic.

CVSS severity5.5
Medium
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in the mt76 mt7921 driver in affected Linux kernels allows local users to crash the kernel during receive processing. The mt792x_rx_get_wcid function dereferences a deflink structure that was not initialized with its station context. The condition requires low-privileged local access and an active MediaTek MT7921 device; the bounded consequence is a kernel panic.

The record

CVE
CVE-2025-22032
Published
Apr 16, 2025
Updated
May 23, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 16, 2025CVE publishedPublication date reported by the CVE source.
  2. May 23, 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=3fe7acc6f4b42ccb1056c5847f18f8eb2fec0834 <0cfea60966e4b1239d20bebf02258295e189e82a
  2. Affected versionversion=6.12.13 <6.12.23
  3. Affected versionversion=6.13.2 <6.13.11
  4. Affected versionversion=6.14
  5. Affected versionversion=90c10286b176421068b136da51ed83059a68e322 <5a57f8eb2a17d469d65cd1186cea26b798221d4a
  6. Affected versionversion=90c10286b176421068b136da51ed83059a68e322 <adc3fd2a2277b7cc0b61692463771bf9bd298036
  7. Affected versionversion=c9e40880416791287292046917e84bcb3a17e2d2 <effec50381991bc067acf4b3351a57831c74d27f

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3fe7acc6f4b42ccb1056c5847f18f8eb2fec0834 <0cfea60966e4b1239d20bebf02258295e189e82a; version=6.12.13 <6.12.23; version=6.13.2 <6.13.11; version=6.14; version=90c10286b176421068b136da51ed83059a68e322 <5a57f8eb2a17d469d65cd1186cea26b798221d4a; version=90c10286b176421068b136da51ed83059a68e322 <adc3fd2a2277b7cc0b61692463771bf9bd298036; version=c9e40880416791287292046917e84bcb3a17e2d2 <effec50381991bc067acf4b3351a57831c74d27f

Published CVSS scores

5.5CISA-ADPCVSS: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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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