SB2026060153 - Multiple vulnerabilities in MediaTek chipsets (June 2026)

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Main Vulnerability Database SB2026060153

SB2026060153 - Multiple vulnerabilities in MediaTek chipsets (June 2026)

Published: June 1, 2026

Security Bulletin ID SB2026060153
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 5
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 5 vulnerabilities.


1) Heap-based buffer overflow (CVE-ID: CVE-2026-20452)

CWE-ID: CWE-122 - Heap-based Buffer Overflow

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to cause memory corruption.

The vulnerability exists due to heap-based buffer overflow in wlan when processing input. A local user can trigger the vulnerable condition to cause memory corruption.


2) Out-of-bounds write (CVE-ID: CVE-2026-20453)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to cause memory corruption.

The vulnerability exists due to out-of-bounds write in geniezone when processing input without proper bounds checking. A local user can trigger the vulnerable condition to cause memory corruption.


3) Time-of-check Time-of-use (TOCTOU) Race Condition (CVE-ID: CVE-2026-20454)

CWE-ID: CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to cause memory corruption.

The vulnerability exists due to time-of-check time-of-use race condition in geniezone when concurrent operations trigger the vulnerable condition. A local user can trigger a race condition to cause memory corruption.


4) Out-of-bounds write (CVE-ID: CVE-2026-20455)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to cause memory corruption.

The vulnerability exists due to out-of-bounds write in geniezone when processing input without proper bounds checking. A local user can trigger the vulnerable condition to cause memory corruption.


5) Out-of-bounds write (CVE-ID: CVE-2026-20456)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to out-of-bounds write in wlan when processing input without proper bounds checking. A local user can trigger the vulnerable condition to cause a denial of service.


Remediation

Install update from vendor's website.

References