CVE-2024-47714

Kernel service interruption via truncated antenna bit count

Published Oct 21, 2024 · Updated Aug 5, 2026

Stack out-of-bounds access in the Linux mt7996 Wi-Fi driver from 6.2 allows attackers to interrupt kernel operation via adjacent wireless activity. mt7996_mcu_add_sta derives a transmit-antenna count from a 16-bit chainmask with hweight8, truncating its upper byte and producing tx_ant -1 for band 2. The affected path requires an MT7996 wireless device and band 2 operation; the resulting invalid stack access causes a KASAN fault.

CVSS severity7.6
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

Stack out-of-bounds access in the Linux mt7996 Wi-Fi driver from 6.2 allows attackers to interrupt kernel operation via adjacent wireless activity. mt7996_mcu_add_sta derives a transmit-antenna count from a 16-bit chainmask with hweight8, truncating its upper byte and producing tx_ant -1 for band 2. The affected path requires an MT7996 wireless device and band 2 operation; the resulting invalid stack access causes a KASAN fault.

The record

CVE
CVE-2024-47714
Published
Oct 21, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-787, T1499
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 21, 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

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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=6.2
  2. Affected versionversion=98686cd21624c75a043e96812beadddf4f6f48e5 <33954930870c18ec549e4bca0eeff43e252cb740
  3. Affected versionversion=98686cd21624c75a043e96812beadddf4f6f48e5 <50d87e3b70980abc090676b6b4703fcbd96221f9
  4. Affected versionversion=98686cd21624c75a043e96812beadddf4f6f48e5 <8f51fc8a9e2fd96363d8ec3f4ee4b78dd64754e3
  5. Affected versionversion=98686cd21624c75a043e96812beadddf4f6f48e5 <f98c3de92bb05dac4a4969df8a4595ed380b4604

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.2; version=98686cd21624c75a043e96812beadddf4f6f48e5 <33954930870c18ec549e4bca0eeff43e252cb740; version=98686cd21624c75a043e96812beadddf4f6f48e5 <50d87e3b70980abc090676b6b4703fcbd96221f9; version=98686cd21624c75a043e96812beadddf4f6f48e5 <8f51fc8a9e2fd96363d8ec3f4ee4b78dd64754e3; version=98686cd21624c75a043e96812beadddf4f6f48e5 <f98c3de92bb05dac4a4969df8a4595ed380b4604

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
7.6Linux kernel CNACVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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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-787Out-of-bounds Write
T1499Endpoint Denial of Service

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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