MediaTek MT6855T Firmware vulnerabilities

2 CVEs affecting MediaTek MT6855T Firmware, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2026-20433, published 2026-04-07.

Highest priority

Known exploited (CISA KEV) first, then by EPSS exploit probability.

CVE-2025-20659, published 2025-04-07. Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days. In Modem, there is a possible system crash due to improper input validation. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker,…
CVE-2026-20433, published 2026-04-07. 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…