CVE-2026-20434: MediaTek LR12A

High severity, CVSS 7.5. EPSS: 0.2% 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: MOLY00782946; Issue ID: MSV-4135.

Affected products

• MediaTek LR12A: affected versions not specified
• MediaTek LR13: affected versions not specified
• MediaTek NR15: affected versions not specified
• MediaTek NR16: affected versions not specified
• MediaTek NR17: affected versions not specified

Published 2026-03-02. Last modified 2026-06-17.