CVE-2026-20433: MediaTek MT2735 Firmware

High severity, CVSS 8.8. EPSS: 0.3% chance of exploitation in the next 30 days.

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 products

  • MediaTek MT2735 Firmware: affected versions not specified
  • MediaTek MT2737 Firmware: affected versions not specified
  • MediaTek MT6813 Firmware: affected versions not specified
  • MediaTek MT6833 Firmware: affected versions not specified
  • MediaTek MT6833P Firmware: affected versions not specified
  • MediaTek MT6835 Firmware: affected versions not specified
  • MediaTek MT6835T Firmware: affected versions not specified
  • MediaTek MT6853 Firmware: affected versions not specified
  • MediaTek MT6853T Firmware: affected versions not specified
  • MediaTek MT6855 Firmware: affected versions not specified
  • MediaTek MT6855T Firmware: affected versions not specified
  • MediaTek MT6873 Firmware: affected versions not specified
  • MediaTek MT6875 Firmware: affected versions not specified
  • MediaTek MT6875T Firmware: affected versions not specified
  • MediaTek MT6877 Firmware: affected versions not specified
  • MediaTek MT6877T Firmware: affected versions not specified
  • MediaTek MT6877TT Firmware: affected versions not specified
  • MediaTek MT6878 Firmware: affected versions not specified
  • MediaTek MT6878M Firmware: affected versions not specified
  • MediaTek MT6879 Firmware: affected versions not specified
  • MediaTek MT6880 Firmware: affected versions not specified
  • MediaTek MT6883 Firmware: affected versions not specified
  • MediaTek MT6885 Firmware: affected versions not specified
  • MediaTek MT6886 Firmware: affected versions not specified
  • MediaTek MT6889 Firmware: affected versions not specified
  • and 37 more

Published 2026-04-07. Last modified 2026-06-17.