SB2026011318 - Multiple vulnerabilities in Lenovo Mediatek tablets

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Main Vulnerability Database SB2026011318

SB2026011318 - Multiple vulnerabilities in Lenovo Mediatek tablets

Published: January 13, 2026

Security Bulletin ID SB2026011318
CSH Severity
Low
Patch available
NO
Number of vulnerabilities 9
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 9 vulnerabilities.


1) Improper Authentication (CVE-ID: CVE-2025-20730)

CWE-ID: CWE-287 - Improper Authentication

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 insecure default value within preloader. A local application can execute arbitrary code.


2) Use After Free (CVE-ID: CVE-2025-20743)

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 within clkdbg. A local application can perform service disruption.


3) Use After Free (CVE-ID: CVE-2025-20745)

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 within apusys. A local application can perform service disruption.


4) Stack-based buffer overflow (CVE-ID: CVE-2025-20746)

CWE-ID: CWE-121 - Stack-based buffer overflow

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 incorrect bounds check within gnss. A local application can perform service disruption.


5) Stack-based buffer overflow (CVE-ID: CVE-2025-20747)

CWE-ID: CWE-121 - Stack-based buffer overflow

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 incorrect bounds check within gnss. A local application can perform service disruption.


6) Stack-based buffer overflow (CVE-ID: CVE-2025-20749)

CWE-ID: CWE-121 - Stack-based buffer overflow

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 within charger. A local application can perform service disruption.


7) Out-of-bounds write (CVE-ID: CVE-2025-20727)

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 heap buffer overflow within Modem. A local application can execute arbitrary code.


8) Heap-based Buffer Overflow (CVE-ID: CVE-2025-20726)

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 an incorrect bounds check within Modem. A local application can execute arbitrary code.


9) Out-of-bounds write (CVE-ID: CVE-2025-20725)

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 within ims service. A local application can execute arbitrary code.


Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References