CVE-2024-42225

Kernel-memory disclosure via uninitialized mt76 buffers

Published Jul 30, 2024 · Updated Aug 5, 2026

Uninitialized memory exposure in the Linux kernel mt76 Wi-Fi driver allows physically proximate attackers to read kernel data over radio. The mt76_connac_mcu.c command builders extend socket buffers with skb_put without clearing new bytes, leaving structure padding and unset fields populated with recycled heap contents. Exposure requires an affected mt76 wireless device and nearby radio access; firmware transmissions can disclose kernel memory or interrupt the wireless interface.

CVSS severity8.3
High
EPSS probability0.49%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uninitialized memory exposure in the Linux kernel mt76 Wi-Fi driver allows physically proximate attackers to read kernel data over radio. The mt76_connac_mcu.c command builders extend socket buffers with skb_put without clearing new bytes, leaving structure padding and unset fields populated with recycled heap contents. Exposure requires an affected mt76 wireless device and nearby radio access; firmware transmissions can disclose kernel memory or interrupt the wireless interface.

The record

CVE
CVE-2024-42225
Published
Jul 30, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-908
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 30, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 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=4.16
  2. Affected versionversion=7bc04215a66b60e198aecaee8418f6d79fa19faa <22ea2a7f0b64d323625950414a4496520fb33657
  3. Affected versionversion=7bc04215a66b60e198aecaee8418f6d79fa19faa <64f86337ccfe77fe3be5a9356b0dabde23fbb074
  4. Affected versionversion=7bc04215a66b60e198aecaee8418f6d79fa19faa <7f819a2f4fbc510e088b49c79addcf1734503578
  5. Affected versionversion=7bc04215a66b60e198aecaee8418f6d79fa19faa <dc7f14d00d0c4c21898f3504607f4a31079065a2
  6. Affected versionversion=7bc04215a66b60e198aecaee8418f6d79fa19faa <ff6b26be13032c5fbd6b6a0b24358f8eaac4f3af

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.16; version=7bc04215a66b60e198aecaee8418f6d79fa19faa <22ea2a7f0b64d323625950414a4496520fb33657; version=7bc04215a66b60e198aecaee8418f6d79fa19faa <64f86337ccfe77fe3be5a9356b0dabde23fbb074; version=7bc04215a66b60e198aecaee8418f6d79fa19faa <7f819a2f4fbc510e088b49c79addcf1734503578; version=7bc04215a66b60e198aecaee8418f6d79fa19faa <dc7f14d00d0c4c21898f3504607f4a31079065a2; version=7bc04215a66b60e198aecaee8418f6d79fa19faa <ff6b26be13032c5fbd6b6a0b24358f8eaac4f3af

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
8.3Linux Kernel CNACVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-908Use of Uninitialized Resource

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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