CVE-2026-20566 PUBLISHED

Assigner: MediaTek
Reserved: 03.11.2025 Published: 02.11.2026 Updated: 02.11.2026

In Modem, there is a possible out of bounds write due to a missing bounds check. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, if a malicious actor has already obtained the System privilege. User interaction is needed for exploitation. Patch ID: MOLY01923663 / ALPS11315955; Issue ID: MSV-10866.

Product Status

Vendor MediaTek, Inc.
Product MediaTek chipset
Versions Default: unaffected
  • Version MT2716 is affected
  • Version MT2735 is affected
  • Version MT2737 is affected
  • Version MT6813 is affected
  • Version MT6815 is affected
  • Version MT6833 is affected
  • Version MT6835 is affected
  • Version MT6853 is affected
  • Version MT6855 is affected
  • Version MT6858 is affected
  • Version MT6873 is affected
  • Version MT6875 is affected
  • Version MT6877 is affected
  • Version MT6878 is affected
  • Version MT6879 is affected
  • Version MT6880 is affected
  • Version MT6881 is affected
  • Version MT6883 is affected
  • Version MT6885 is affected
  • Version MT6886 is affected
  • Version MT6889 is affected
  • Version MT6890 is affected
  • Version MT6891 is affected
  • Version MT6893 is affected
  • Version MT6895 is affected
  • Version MT6896 is affected
  • Version MT6897 is affected
  • Version MT6899 is affected
  • Version MT6980 is affected
  • Version MT6982 is affected
  • Version MT6983 is affected
  • Version MT6985 is affected
  • Version MT6986 is affected
  • Version MT6988 is affected
  • Version MT6989 is affected
  • Version MT6990 is affected
  • Version MT6991 is affected
  • Version MT6993 is affected
  • Version MT8676 is affected
  • Version MT8678 is affected
  • Version MT8791 is affected

References

Problem Types

  • CWE-787 Out-of-bounds Write CWE