CVE-2024-20072

Local privilege escalation via WLAN input validation

Published Jun 3, 2024 · Updated Aug 1, 2024

An out-of-bounds write in the MediaTek WLAN driver on affected SDK and OpenWrt releases allows local users to elevate privileges. The driver fails to validate an unspecified input before writing beyond an intended buffer; MediaTek has not disclosed the affected routine or input path. Exploitation requires existing System execution privileges and no user interaction, and the resulting privilege boundary is not publicly specified.

CVSS severity6.6
Medium
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

An out-of-bounds write in the MediaTek WLAN driver on affected SDK and OpenWrt releases allows local users to elevate privileges. The driver fails to validate an unspecified input before writing beyond an intended buffer; MediaTek has not disclosed the affected routine or input path. Exploitation requires existing System execution privileges and no user interaction, and the resulting privilege boundary is not publicly specified.

The record

CVE
CVE-2024-20072
Published
Jun 3, 2024
Updated
Aug 1, 2024
Vendor
MediaTek
Product
MT6890
Classifications
CWE-787, T1068
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Jun 3, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 2024Record 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=*

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

MediaTek · MT6890version=*
MediaTek · MT6990version=*
OpenWrt · OpenWrtversion=*
MediaTek · MT7622version=*

Published CVSS scores

6.6CISA-ADPCVSS:3.1/AV:N/AC:H/PR:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
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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