CVE-2024-27049

Local kernel corruption via post-deregistration shared IRQ

Published May 1, 2024 · Updated May 11, 2026

Use-after-free in the Linux kernel 6.7 through 6.8.1 allows local users to corrupt kernel memory through the mt7925e Wi-Fi driver. During mt7925e teardown, free_irq() can invoke the shared interrupt handler after deregistration, and the handler accesses released device resources without first recognizing removal. Reachability requires local low-privileged access and affected MediaTek mt7925e Wi-Fi hardware; the invalid kernel memory access can corrupt memory or crash the system.

CVSS severity7.8
High
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in the Linux kernel 6.7 through 6.8.1 allows local users to corrupt kernel memory through the mt7925e Wi-Fi driver. During mt7925e teardown, free_irq() can invoke the shared interrupt handler after deregistration, and the handler accesses released device resources without first recognizing removal. Reachability requires local low-privileged access and affected MediaTek mt7925e Wi-Fi hardware; the invalid kernel memory access can corrupt memory or crash the system.

The record

CVE
CVE-2024-27049
Published
May 1, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-416, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 1, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 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=6.7
  2. Affected versionversion=c948b5da6bbec742b433138e3e3f9537a85af2e5 <6d9930096e1f13cf6d9aabfbf95d0e05fb04144f
  3. Affected versionversion=c948b5da6bbec742b433138e3e3f9537a85af2e5 <84470b48af03a818039d587478b415cbcb264ff5
  4. Affected versionversion=c948b5da6bbec742b433138e3e3f9537a85af2e5 <a5a5f4413d91f395cb2d89829d376d7393ad48b9

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.7; version=c948b5da6bbec742b433138e3e3f9537a85af2e5 <6d9930096e1f13cf6d9aabfbf95d0e05fb04144f; version=c948b5da6bbec742b433138e3e3f9537a85af2e5 <84470b48af03a818039d587478b415cbcb264ff5; version=c948b5da6bbec742b433138e3e3f9537a85af2e5 <a5a5f4413d91f395cb2d89829d376d7393ad48b9

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8SUSECVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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-416Use After Free
T1068Exploitation for Privilege Escalation

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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