Out-of-bounds write in MediaTek products - CVE-2025-20727
Published: November 3, 2025
Vulnerability identifier: #VU117888
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-2025-20727
CWE-ID: CWE-787
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
MT6983T
MT8675
MT8673
MT8667
MT8666
MT6991
MT6990
MT6989T
MT6989
MT6985T
MT6985
MT8676
MT6983
MT6980D
MT6980
MT6899
MT6897
MT6896
MT6895TT
MT6895
MT8791
MT8893
MT8883
MT8873
MT8863
MT8798
MT8795T
MT8793
MT8792
MT8791T
MT8788E
MT8788
MT8786
MT8771
MT8768
MT8766R
MT8766
MT8765
MT8678
MT6767
MT6833P
MT6833
MT6813
MT6771
MT6769Z
MT6769T
MT6769S
MT6769K
MT6769
MT6768
MT6835
MT6765T
MT6765
MT6763
MT6762M
MT6762D
MT6762
MT6761
MT6739
MT2737
MT6877T
MT6890
MT6886
MT6880
MT6879
MT6878M
MT6878
MT6877TT
MT2735
MT6875T
MT6855T
MT6855
MT6835T
MT6893
MT8797
MT6891
MT6889
MT6885
MT6883
MT6877
MT6875
MT6873
MT6853T
MT6853
TB373FU Lenovo Idea Tab Pro
TB311FU/TB311XU Lenovo Tab with Clear Case/ Lenovo Tab with Folio Case
TB351FU Lenovo Tab Plus
TB350FU, TB350XU Lenovo Tab P11 Gen
TB350FU, TB350XU Lenovo Tab P11 2nd
TB305FUXU Lenovo Tab One/Lenovo Tab K9
TB330FUP, TB330XUP Lenovo Tab K11 Edition
TB330FUP, TB330XUP Lenovo Tab K11 Enhanced
TB570FU, TB570ZU Lenovo Tab Extreme
TB330FU/TB330XU Lenovo Tab B11/Lenovo Tab M11&K11
TB336FU/TB336ZU Lenovo Idea Tab/ Lenovo Tab K11 Gen 2
Lenovo Idea Tab Pro (TB373FU)
Lenovo Tab with Clear Case/ Lenovo Tab with Folio Case (TB311FU/TB311XU)
Lenovo Tab Plus (TB351FU)
Lenovo Tab P11 2nd Gen (TB350XU / TB350FU)
Lenovo Tab One/Lenovo Tab K9 (TB305FUXU)
Lenovo Tab K9 (TB305FU/TB305XU)
Lenovo Tab K11 (TB330FU/TB330FUP/TB330XU/TB330XUP)
Lenovo Tab Extreme (TB570ZU/TB570FU)
Lenovo Tab M11 (TB330FU/TB330XU)
Lenovo Idea Tab/ Lenovo Tab K11 Gen 2 (TB336FU/TB336ZU)
MT8675
MT8673
MT8667
MT8666
MT6991
MT6990
MT6989T
MT6989
MT6985T
MT6985
MT8676
MT6983
MT6980D
MT6980
MT6899
MT6897
MT6896
MT6895TT
MT6895
MT8791
MT8893
MT8883
MT8873
MT8863
MT8798
MT8795T
MT8793
MT8792
MT8791T
MT8788E
MT8788
MT8786
MT8771
MT8768
MT8766R
MT8766
MT8765
MT8678
MT6767
MT6833P
MT6833
MT6813
MT6771
MT6769Z
MT6769T
MT6769S
MT6769K
MT6769
MT6768
MT6835
MT6765T
MT6765
MT6763
MT6762M
MT6762D
MT6762
MT6761
MT6739
MT2737
MT6877T
MT6890
MT6886
MT6880
MT6879
MT6878M
MT6878
MT6877TT
MT2735
MT6875T
MT6855T
MT6855
MT6835T
MT6893
MT8797
MT6891
MT6889
MT6885
MT6883
MT6877
MT6875
MT6873
MT6853T
MT6853
TB373FU Lenovo Idea Tab Pro
TB311FU/TB311XU Lenovo Tab with Clear Case/ Lenovo Tab with Folio Case
TB351FU Lenovo Tab Plus
TB350FU, TB350XU Lenovo Tab P11 Gen
TB350FU, TB350XU Lenovo Tab P11 2nd
TB305FUXU Lenovo Tab One/Lenovo Tab K9
TB330FUP, TB330XUP Lenovo Tab K11 Edition
TB330FUP, TB330XUP Lenovo Tab K11 Enhanced
TB570FU, TB570ZU Lenovo Tab Extreme
TB330FU/TB330XU Lenovo Tab B11/Lenovo Tab M11&K11
TB336FU/TB336ZU Lenovo Idea Tab/ Lenovo Tab K11 Gen 2
Lenovo Idea Tab Pro (TB373FU)
Lenovo Tab with Clear Case/ Lenovo Tab with Folio Case (TB311FU/TB311XU)
Lenovo Tab Plus (TB351FU)
Lenovo Tab P11 2nd Gen (TB350XU / TB350FU)
Lenovo Tab One/Lenovo Tab K9 (TB305FUXU)
Lenovo Tab K9 (TB305FU/TB305XU)
Lenovo Tab K11 (TB330FU/TB330FUP/TB330XU/TB330XUP)
Lenovo Tab Extreme (TB570ZU/TB570FU)
Lenovo Tab M11 (TB330FU/TB330XU)
Lenovo Idea Tab/ Lenovo Tab K11 Gen 2 (TB336FU/TB336ZU)
How to mitigate CVE-2025-20727
Install security update from vendor's website.