SB2026020265 - Multiple vulnerabilities in MediaTek chipsets

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Main Vulnerability Database SB2026020265

SB2026020265 - Multiple vulnerabilities in MediaTek chipsets

Published: February 2, 2026

Security Bulletin ID SB2026020265
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 21
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 21 vulnerabilities.


1) Out-of-bounds write (CVE-ID: CVE-2026-20410)

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:L/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local application to perform service disruption.

The vulnerability exists due to a missing bounds check in imgsys subcomponent. A local application can perform service disruption.


2) Improper Check for Unusual or Exceptional Conditions (CVE-ID: CVE-2026-20419)

CWE-ID: CWE-754 - Improper Check for Unusual or Exceptional Conditions

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


The vulnerability allows a local application to perform service disruption.

The vulnerability exists due to an uncaught exception in wlan subcomponent. A local application can perform service disruption.


3) Out-of-bounds write (CVE-ID: CVE-2026-20418)

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:L/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local application to perform service disruption.

The vulnerability exists due to a missing bounds check in Thread subcomponent. A local application can perform service disruption.


4) Out-of-bounds write (CVE-ID: CVE-2026-20417)

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:L/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local application to perform service disruption.

The vulnerability exists due to a missing bounds check in pcie subcomponent. A local application can perform service disruption.


5) Double Free (CVE-ID: CVE-2026-20415)

CWE-ID: CWE-415 - Double Free

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


The vulnerability allows a local application to perform service disruption.

The vulnerability exists due to improper locking in imgsys subcomponent. A local application can perform service disruption.


6) Use After Free (CVE-ID: CVE-2026-20414)

CWE-ID: CWE-416 - Use After Free

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


The vulnerability allows a local application to perform service disruption.

The vulnerability exists due to use after free in imgsys subcomponent. A local application can perform service disruption.


7) Improper Validation of Specified Index, Position, or Offset in Input (CVE-ID: CVE-2026-20413)

CWE-ID: -

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


The vulnerability allows a local application to perform service disruption.

The vulnerability exists due to a missing bounds check in imgsys subcomponent. A local application can perform service disruption.


8) Out-of-bounds write (CVE-ID: CVE-2026-20412)

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:L/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local application to perform service disruption.

The vulnerability exists due to a missing bounds check in cameraisp subcomponent. A local application can perform service disruption.


9) Use After Free (CVE-ID: CVE-2026-20411)

CWE-ID: CWE-416 - Use After Free

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


The vulnerability allows a local application to perform service disruption.

The vulnerability exists due to use after free in cameraisp subcomponent. A local application can perform service disruption.


10) Out-of-bounds write (CVE-ID: CVE-2026-20409)

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:L/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local application to perform service disruption.

The vulnerability exists due to a missing bounds check in imgsys subcomponent. A local application can perform service disruption.


11) Out-of-bounds read (CVE-ID: CVE-2026-20420)

CWE-ID: CWE-125 - Out-of-bounds read

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 application to perform a denial of service attack.

The vulnerability exists due to incorrect error handling in modem subcomponent. A local application can perform a denial of service attack. 


12) Heap-based Buffer Overflow (CVE-ID: CVE-2026-20408)

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

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


The vulnerability allows a local application to execute arbitrary code.

The vulnerability exists due to a heap buffer overflow in wlan subcomponent. A local application can execute arbitrary code.


13) Out-of-bounds write (CVE-ID: CVE-2026-20407)

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

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


The vulnerability allows a local application to execute arbitrary code.

The vulnerability exists due to a missing bounds check in wlan subcomponent. A local application can execute arbitrary code.


14) Allocation of Resources Without Limits or Throttling (CVE-ID: CVE-2026-20406)

CWE-ID: CWE-770 - Allocation of Resources Without Limits or Throttling

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 application to perform a denial of service attack.

The vulnerability exists due to an uncaught exception in modem subcomponent. A local application can crash the system.


15) Reachable Assertion (CVE-ID: CVE-2026-20405)

CWE-ID: CWE-617 - Reachable Assertion

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 application to perform a denial of service attack.

The vulnerability exists due to a missing bounds check in modem subcomponent. A local application can crash the system.


16) Out-of-bounds write (CVE-ID: CVE-2026-20404)

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

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


The vulnerability allows a local application to execute arbitrary code.

The vulnerability exists due to improper input validation in modem subcomponent. A local application can execute arbitrary code.


17) Out-of-bounds write (CVE-ID: CVE-2026-20403)

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

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


The vulnerability allows a local application to execute arbitrary code.

The vulnerability exists due to a missing bounds check in modem subcomponent. A local application can execute arbitrary code.


18) Reachable Assertion (CVE-ID: CVE-2026-20422)

CWE-ID: CWE-617 - Reachable Assertion

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 application to perform a denial of service attack.

The vulnerability exists due to improper input validation in modem subcomponent. A local application can crash the system.


19) Out-of-bounds read (CVE-ID: CVE-2026-20421)

CWE-ID: CWE-125 - Out-of-bounds read

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 application to perform a denial of service attack.

The vulnerability exists due to improper input validation in modem subcomponent. A local application can crash the system.


20) Out-of-bounds write (CVE-ID: CVE-2026-20402)

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

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


The vulnerability allows a local application to execute arbitrary code.

The vulnerability exists due to improper input validation in modem subcomponent. A local application can execute arbitrary code.


21) Reachable Assertion (CVE-ID: CVE-2026-20401)

CWE-ID: CWE-617 - Reachable Assertion

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


The vulnerability allows a local application to execute arbitrary code.

The vulnerability exists due to an uncaught exception in modem subcomponent. A local application can execute arbitrary code.


Remediation

Install update from vendor's website.

References