CVE-2026-20433: High severity MediaTek Mt2735 Firmware vulnerability
Published Apr 7, 2026
·Updated
In Modem, there is a possible out of bounds write due to a missing bounds check. This could lead to remote escalation of privilege, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is needed for exploitation. Patch ID: MOLY01088681; Issue ID: MSV-4460.
Affected Software
124 affected components
All of the following
MediaTek Mt2735 Firmware
MediaTek Mt2735
All of the following
MediaTek Mt2737 Firmware
MediaTek Mt2737
All of the following
MediaTek Mt6813 Firmware
MediaTek Mt6813
All of the following
MediaTek Mt6833 Firmware
MediaTek Mt6833
All of the following
MediaTek Mt6833p Firmware
MediaTek Mt6833p
All of the following
MediaTek Mt6835 Firmware
MediaTek Mt6835
All of the following
MediaTek Mt6835t Firmware
MediaTek Mt6835t
All of the following
MediaTek Mt6853 Firmware
MediaTek Mt6853
All of the following
MediaTek Mt6853t Firmware
MediaTek Mt6853t
All of the following
MediaTek Mt6855 Firmware
MediaTek Mt6855
All of the following
MediaTek Mt6855t Firmware
MediaTek Mt6855t
All of the following
MediaTek Mt6873 Firmware
MediaTek Mt6873
All of the following
MediaTek Mt6875 Firmware
MediaTek Mt6875
All of the following
MediaTek Mt6875t Firmware
MediaTek Mt6875t
All of the following
MediaTek Mt6877 Firmware
MediaTek Mt6877
All of the following
MediaTek Mt6877t Firmware
MediaTek Mt6877t
All of the following
MediaTek Mt6877tt Firmware
MediaTek Mt6877tt
All of the following
MediaTek Mt6878 Firmware
MediaTek Mt6878
All of the following
MediaTek Mt6878m Firmware
MediaTek Mt6878m
All of the following
MediaTek Mt6879 Firmware
MediaTek Mt6879
All of the following
MediaTek Mt6880 Firmware
MediaTek Mt6880
All of the following
MediaTek Mt6883 Firmware
MediaTek Mt6883
All of the following
MediaTek Mt6885 Firmware
MediaTek Mt6885
All of the following
MediaTek Mt6886 Firmware
MediaTek Mt6886
All of the following
MediaTek Mt6889 Firmware
MediaTek Mt6889
All of the following
MediaTek Mt6890 Firmware
MediaTek Mt6890
All of the following
MediaTek Mt6891 Firmware
MediaTek Mt6891
All of the following
MediaTek Mt6893 Firmware
MediaTek Mt6893
All of the following
MediaTek Mt6895 Firmware
MediaTek Mt6895
All of the following
MediaTek Mt6895tt Firmware
MediaTek Mt6895tt
All of the following
MediaTek Mt6896 Firmware
MediaTek Mt6896
All of the following
MediaTek Mt6897 Firmware
MediaTek Mt6897
All of the following
MediaTek Mt6899 Firmware
MediaTek Mt6899
All of the following
MediaTek Mt6980 Firmware
MediaTek Mt6980
All of the following
MediaTek Mt6980d Firmware
MediaTek Mt6980d
All of the following
MediaTek Mt6983 Firmware
MediaTek Mt6983
All of the following
MediaTek Mt6983t Firmware
MediaTek Mt6983t
All of the following
MediaTek Mt6985 Firmware
MediaTek Mt6985
All of the following
MediaTek Mt6985t Firmware
MediaTek Mt6985t
All of the following
MediaTek Mt6989 Firmware
MediaTek Mt6989
All of the following
MediaTek Mt6989t Firmware
MediaTek Mt6989t
All of the following
MediaTek Mt6990 Firmware
MediaTek Mt6990
All of the following
MediaTek Mt6991 Firmware
MediaTek Mt6991
All of the following
MediaTek Mt8668 Firmware
MediaTek Mt8668
All of the following
MediaTek Mt8673 Firmware
MediaTek Mt8673
All of the following
MediaTek Mt8675 Firmware
MediaTek Mt8675
All of the following
MediaTek Mt8676 Firmware
MediaTek Mt8676
All of the following
MediaTek Mt8678 Firmware
MediaTek Mt8678
All of the following
MediaTek Mt8755 Firmware
MediaTek Mt8755
All of the following
MediaTek Mt8771 Firmware
MediaTek Mt8771
All of the following
MediaTek Mt8775 Firmware
MediaTek Mt8775
All of the following
MediaTek Mt8791 Firmware
MediaTek Mt8791
All of the following
MediaTek Mt8791t Firmware
MediaTek Mt8791t
All of the following
MediaTek Mt8792 Firmware
MediaTek Mt8792
All of the following
MediaTek Mt8793 Firmware
MediaTek Mt8793
All of the following
MediaTek Mt8795t Firmware
MediaTek Mt8795t
All of the following
MediaTek Mt8797 Firmware
MediaTek Mt8797
All of the following
MediaTek Mt8798 Firmware
MediaTek Mt8798
All of the following
MediaTek Mt8863 Firmware
MediaTek Mt8863
All of the following
MediaTek Mt8873 Firmware
MediaTek Mt8873
All of the following
MediaTek Mt8883 Firmware
MediaTek Mt8883
All of the following
MediaTek Mt8893 Firmware
MediaTek Mt8893
Event History
Apr 7, 2026
CVE Published
via MITRE·03:25 AM
Data Sourced
via MITRE·03:25 AM
DescriptionWeakness
Data Sourced
via NVD·04:17 AM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2026-20433?
CVE-2026-20433 has a high severity rating due to its potential for remote escalation of privilege.
2
How do I fix CVE-2026-20433?
To fix CVE-2026-20433, ensure that you are using the latest firmware version provided by MediaTek that addresses this vulnerability.
3
What are the potential impacts of CVE-2026-20433?
The potential impacts of CVE-2026-20433 include unauthorized access and privilege escalation when connected to a rogue base station.
4
Who is affected by CVE-2026-20433?
Devices utilizing certain MediaTek firmware versions are affected by CVE-2026-20433.
5
Is user interaction required to exploit CVE-2026-20433?
Yes, user interaction is needed for the exploitation of CVE-2026-20433.