SB20260114137 - Multiple vulnerabilities in Lenovo Mediatek tablets

Description

This security bulletin contains information about 28 vulnerabilities.

1) Out-of-bounds write (CVE-ID: CVE-2025-20795)

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 KeyInstall. A local application can execute arbitrary code.

2) Out-of-bounds write (CVE-ID: CVE-2025-20798)

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 within battery. A local application can perform service disruption.

3) Use After Free (CVE-ID: CVE-2025-20779)

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 a race condition within display. A local application can perform service disruption.

4) Out-of-bounds write (CVE-ID: CVE-2025-20778)

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 within display. A local application can perform service disruption.

5) Use After Free (CVE-ID: CVE-2025-20802)

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 geniezone. A local application can perform service disruption.

6) Double Free (CVE-ID: CVE-2025-20801)

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 a race condition within seninf. A local application can perform service disruption.

7) Out-of-bounds write (CVE-ID: CVE-2025-20800)

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 within mminfra. A local application can perform service disruption.

8) Use After Free (CVE-ID: CVE-2025-20799)

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 c2ps. A local application can perform service disruption.

9) Stack-based buffer overflow (CVE-ID: CVE-2025-20797)

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 battery. A local application can perform service disruption.

10) Double Free (CVE-ID: CVE-2025-20781)

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 use after free within display. A local application can perform service disruption.

11) Improper Validation of Specified Index, Position, or Offset in Input (CVE-ID: CVE-2025-20796)

CWE-ID: CWE-1285 - Improper Validation of Specified Index, Position, or Offset in Input

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 input validation within imgsys. A local application can perform service disruption.

12) Reachable Assertion (CVE-ID: CVE-2025-20760)

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 within Modem. A local application can execute arbitrary code.

13) Improper Check for Unusual or Exceptional Conditions (CVE-ID: CVE-2025-20761)

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: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 incorrect error handling within Modem. A local application can execute arbitrary code.

14) Reachable Assertion (CVE-ID: CVE-2025-20762)

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 incorrect error handling within Modem. A local application can execute arbitrary code.

15) NULL Pointer Dereference (CVE-ID: CVE-2025-20793)

CWE-ID: CWE-476 - NULL Pointer Dereference

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 incorrect error handling within Modem. A local application can execute arbitrary code.

16) Stack-based buffer overflow (CVE-ID: CVE-2025-20794)

CWE-ID: CWE-121 - Stack-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 improper input validation within Modem. A local application can execute arbitrary code.

17) Use After Free (CVE-ID: CVE-2025-20780)

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 display. A local application can perform service disruption.

18) Out-of-bounds write (CVE-ID: CVE-2025-20782)

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 within display. A local application can perform service disruption.

19) Integer overflow (CVE-ID: CVE-2025-20807)

CWE-ID: CWE-190 - Integer 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 integer overflow within dpe. A local application can perform service disruption.

20) Use After Free (CVE-ID: CVE-2025-20806)

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 dpe. A local application can perform service disruption.

21) Out-of-bounds write (CVE-ID: CVE-2025-20783)

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 within display. A local application can perform service disruption.

22) Use After Free (CVE-ID: CVE-2025-20805)

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 dpe. A local application can perform service disruption.

23) Use After Free (CVE-ID: CVE-2025-20804)

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 dpe. A local application can perform service disruption.

24) Integer overflow (CVE-ID: CVE-2025-20803)

CWE-ID: CWE-190 - Integer 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 integer overflow within dpe. A local application can perform service disruption.

25) Use After Free (CVE-ID: CVE-2025-20787)

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 display. A local application can perform service disruption.

26) Double Free (CVE-ID: CVE-2025-20786)

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 use after free within display. A local application can perform service disruption.

27) Use After Free (CVE-ID: CVE-2025-20785)

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 display. A local application can perform service disruption.

28) Use of Uninitialized Variable (CVE-ID: CVE-2025-20784)

CWE-ID: CWE-457 - Use of Uninitialized Variable

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 uninitialized data within display. A local application can perform service disruption.

Remediation

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

References

• https://support.lenovo.com/us/en/product_security/LEN-209617