Out-of-bounds read in MediaTek products - CVE-2025-20759

Vulnerability identifier: #VU118884

CSH Severity: Low

CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2025-20759

CWE-ID: CWE-125

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local application to gain access to sensitive information.

The vulnerability exists due to a missing bounds check within Modem. A local application can gain access to sensitive information.

MT6989T
MT6895
MT6895TT
MT6896
MT6980
MT6980D
MT6983
MT6983T
MT6985
MT6985T
MT6989
MT6990
MT8673
MT8675
MT8771
MT8791
MT8791T
MT8795T
MT8798
MT8893
MT2737
MT6833
MT6833P
MT6855
MT6855T
MT6875T
MT2735
MT6877T
MT6877TT
MT6879
MT6880
MT6886
MT6890
MT6893
MT8797
MT6877
MT6853
MT6853T
MT6873
MT6875
MT6883
MT6885
MT6889
MT6891
TB373FU Lenovo Idea Tab Pro
TB336FU/TB336ZU Lenovo Idea Tab/ Lenovo Tab K11 Gen 2
TB570FU, TB570ZU Lenovo Tab Extreme
TB350FU, TB350XU Lenovo Tab P11 2nd
TB350FU, TB350XU Lenovo Tab P11 Gen
TB351FU Lenovo Tab Plus
TB311FU/TB311XU Lenovo Tab with Clear Case/ Lenovo Tab with Folio Case
Lenovo Idea Tab Pro (TB373FU)
Lenovo Idea Tab/ Lenovo Tab K11 Gen 2 (TB336FU/TB336ZU)
Lenovo Tab Extreme (TB570ZU/TB570FU)
Lenovo Tab P11 2nd Gen (TB350XU / TB350FU)
Lenovo Tab Plus (TB351FU)
Lenovo Tab with Clear Case/ Lenovo Tab with Folio Case (TB311FU/TB311XU)

Install security update from vendor's website.

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

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