CVE-2026-20479

EUVD-2026-52068
In Modem, there is a possible out of bounds read 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, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY00741071; Issue ID: MSV-7620.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 41.5%
Affected Products (NVD)
VendorProductVersion
mediatekmt2735_firmware
-
mediatekmt6833_firmware
-
mediatekmt6853_firmware
-
mediatekmt6855_firmware
-
mediatekmt6873_firmware
-
mediatekmt6875_firmware
-
mediatekmt6877_firmware
-
mediatekmt6880_firmware
-
mediatekmt6883_firmware
-
mediatekmt6885_firmware
-
mediatekmt6889_firmware
-
mediatekmt6890_firmware
-
mediatekmt6891_firmware
-
mediatekmt6893_firmware
-
mediatekmt8675_firmware
-
mediatekmt8771_firmware
-
mediatekmt8791_firmware
-
mediatekmt8791t_firmware
-
mediatekmt8797_firmware
-
𝑥
= Vulnerable software versions
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://www.mediatek.com/product-security-bulletin/August-2026