Use-after-free in MediaTek products - CVE-2025-20707

Vulnerability identifier: #VU114609

CSH Severity: Low

CVSS v4: 8.5 [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]

CVE-ID: CVE-2025-20707

CWE-ID: CWE-416

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local application to escalate privileges on the system.

The vulnerability exists due to a use-after-free error in geniezone. A local application can execute arbitrary code with elevated privileges. 

MT8678
MT8893
MT8883
MT8796
MT8792
MT8791T
MT8788E
MT8786
MT8775
MT2718
MT8676
MT8196
MT6991
MT6899
MT6893
MT6877
MT6853
TB373FU Lenovo Idea Tab Pro
TB330FU/TB330XU Lenovo Tab B11/Lenovo Tab M11&K11
TB330FUP, TB330XUP Lenovo Tab K11 Enhanced
TB330FUP, TB330XUP Lenovo Tab K11 Edition
TB310XU, TB310FU Lenovo Tab M9
TB305FUXU Lenovo Tab One/Lenovo Tab K9
TB311FU/TB311XU Lenovo Tab with Clear Case/ Lenovo Tab with Folio Case
Lenovo Idea Tab Pro (TB373FU)
Lenovo Tab M11 (TB330FU/TB330XU)
Lenovo Tab K11 (TB330FU/TB330FUP/TB330XU/TB330XUP)
Lenovo Tab M9 (TB310FU/TB310XU/TB310XC)
Lenovo Tab K9 (TB305FU/TB305XU)
Lenovo Tab with Clear Case/ Lenovo Tab with Folio Case (TB311FU/TB311XU)

Install updates from vendor's website.

• https://corp.mediatek.com/product-security-bulletin/September-2025

• Multiple vulnerabilities in MediaTek chipsets
• Multiple vulnerabilities in Lenovo Mediatek tablets