Out-of-bounds write in MediaTek products - CVE-2025-20723

Vulnerability identifier: #VU116741

CSH Severity: Low

CVSS v4: 4.8 [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]

CVE-ID: CVE-2025-20723

CWE-ID: CWE-787

Exploitation vector: Local access

Exploit availability: No public exploit available

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.

MT6835
MT6878
MT6886
MT6897
MT6899
MT6985
MT6989
MT6991
MT8676
MT8678
MT8775
MT8791T
MT8796
MT8873
Lenovo Idea Tab Pro (TB373FU)
TB373FU Lenovo Idea Tab Pro

Install security update from vendor's website.

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

• Multiple vulnerabilities in MediaTek chipsets
• Multiple vulnerabilities in Lenovo Idea Tab Pro