Description

In Modem, there is a possible system crash due to a heap buffer overflow. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01760138; Issue ID: MSV-6148.

INFO

Published Date :

2026-05-04T05:41:54.581Z

Last Modified :

2026-05-04T12:59:15.818Z

Source :

MediaTek
AFFECTED PRODUCTS

The following products are affected by CVE-2026-20449 vulnerability.

Vendors Products
Mediatek
  • Mt2735
  • Mt2735 Firmware
  • Mt2737
  • Mt2737 Firmware
  • Mt6739
  • Mt6739 Firmware
  • Mt6761
  • Mt6761 Firmware
  • Mt6762
  • Mt6762 Firmware
  • Mt6763
  • Mt6763 Firmware
  • Mt6765
  • Mt6765 Firmware
  • Mt6767
  • Mt6767 Firmware
  • Mt6768
  • Mt6768 Firmware
  • Mt6769
  • Mt6769 Firmware
  • Mt6771
  • Mt6771 Firmware
  • Mt6779
  • Mt6779 Firmware
  • Mt6781
  • Mt6781 Firmware
  • Mt6783
  • Mt6783 Firmware
  • Mt6785
  • Mt6785 Firmware
  • Mt6789
  • Mt6789 Firmware
  • Mt6813
  • Mt6813 Firmware
  • Mt6815
  • Mt6815 Firmware
  • Mt6833
  • Mt6833 Firmware
  • Mt6835
  • Mt6835 Firmware
  • Mt6853
  • Mt6853 Firmware
  • Mt6855
  • Mt6855 Firmware
  • Mt6858
  • Mt6858 Firmware
  • Mt6873
  • Mt6873 Firmware
  • Mt6875
  • Mt6875 Firmware
  • Mt6877
  • Mt6877 Firmware
  • Mt6878
  • Mt6878 Firmware
  • Mt6879
  • Mt6879 Firmware
  • Mt6880
  • Mt6880 Firmware
  • Mt6883
  • Mt6883 Firmware
  • Mt6885
  • Mt6885 Firmware
  • Mt6886
  • Mt6886 Firmware
  • Mt6889
  • Mt6889 Firmware
  • Mt6890
  • Mt6890 Firmware
  • Mt6891
  • Mt6891 Firmware
  • Mt6893
  • Mt6893 Firmware
  • Mt6895
  • Mt6895 Firmware
  • Mt6896
  • Mt6896 Firmware
  • Mt6897
  • Mt6897 Firmware
  • Mt6899
  • Mt6899 Firmware
  • Mt6980
  • Mt6980 Firmware
  • Mt6983
  • Mt6983 Firmware
  • Mt6985
  • Mt6985 Firmware
  • Mt6986d
  • Mt6986d Firmware
  • Mt6988
  • Mt6988 Firmware
  • Mt6989
  • Mt6989 Firmware
  • Mt6990
  • Mt6990 Firmware
  • Mt6991
  • Mt6991 Firmware
  • Mt6993
  • Mt6993 Firmware
  • Mt8668
  • Mt8668 Firmware
  • Mt8673
  • Mt8673 Firmware
  • Mt8675
  • Mt8675 Firmware
  • Mt8676
  • Mt8676 Firmware
  • Mt8678
  • Mt8678 Firmware
  • Mt8755
  • Mt8755 Firmware
  • Mt8771
  • Mt8771 Firmware
  • Mt8775
  • Mt8775 Firmware
  • Mt8791
  • Mt8791 Firmware
  • Mt8791t
  • Mt8791t Firmware
  • Mt8792
  • Mt8792 Firmware
  • Mt8793
  • Mt8793 Firmware
  • Mt8795t
  • Mt8795t Firmware
  • Mt8797
  • Mt8797 Firmware
  • Mt8798
  • Mt8798 Firmware
  • Mt8863
  • Mt8863 Firmware
  • Mt8873
  • Mt8873 Firmware
  • Mt8883
  • Mt8883 Firmware
  • Mt8893
  • Mt8893 Firmware
Mediatek, Inc.
  • Mediatek Chipset
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-20449.

URL Resource
https://corp.mediatek.com/product-security-bulletin/May-2026 cve-icon cve-icon
Login to claim this CVE

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact