CVE-2024-20022

Privilege escalation via missing lk bounds check

Published Mar 4, 2024 · Updated Mar 13, 2025

Privilege escalation in MediaTek lk on affected chipsets allows local users with System privilege to gain higher local privileges. The lk component omits a bounds check, but MediaTek has not disclosed the affected function, input, or out-of-range operation. Exploitation requires existing System privilege and no user interaction; successful exploitation grants additional local privilege.

CVSS severity6.7
Medium
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Privilege escalation in MediaTek lk on affected chipsets allows local users with System privilege to gain higher local privileges. The lk component omits a bounds check, but MediaTek has not disclosed the affected function, input, or out-of-range operation. Exploitation requires existing System privilege and no user interaction; successful exploitation grants additional local privilege.

The record

CVE
CVE-2024-20022
Published
Mar 4, 2024
Updated
Mar 13, 2025
Vendor
MediaTek
Product
MT8667
Classifications
CWE-269, T1068, T1404
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Mar 4, 2024CVE publishedPublication date reported by the CVE source.
  2. Mar 13, 2025Record 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=0 <=*

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

MediaTek · MT8667version=0 <=*
MediaTek · MT8768version=0 <=*
MediaTek · MT6880version=0 <=*
MediaTek · MT8796version=0 <=*
MediaTek · MT6789version=0 <=*
MediaTek · MT6835version=0 <=*
MediaTek · MT6980version=0 <=*
MediaTek · MT6890version=0 <=*
MediaTek · MT6855version=0 <=*
MediaTek · MT8766version=0 <=*
MediaTek · MT6990version=0 <=*
MediaTek · MT8666version=0 <=*
MediaTek · MT8385version=0 <=*
MediaTek · MT8798version=0 <=*
MediaTek · MT6879version=0 <=*
MediaTek · MT8791version=0 <=*
MediaTek · MT6886version=0 <=*
MediaTek · MT8786version=0 <=*
MediaTek · MT8781version=0 <=*
MediaTek · MT8321version=0 <=*
MediaTek · MT8789version=0 <=*
MediaTek · MT8673version=0 <=*
MediaTek · MT2737version=0 <=*
MediaTek · MT6985version=0 <=*
MediaTek · MT8788version=0 <=*
MediaTek · MT8797version=0 <=*
MediaTek · MT6983version=0 <=*
MediaTek · MT8765version=0 <=*
MediaTek · MT6895version=0 <=*
MediaTek · MT6989version=0 <=*

Published CVSS scores

6.7CISA-ADPCVSS:3.1/AV:L/AC:L/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-269Improper Privilege Management
T1068Exploitation for Privilege Escalation
T1404Exploitation 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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