CVE-2026-20420: Medium severity MediaTek Nr15 vulnerability
In Modem, there is a possible system crash due to incorrect error handling. 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: MOLY01738313; Issue ID: MSV-5935.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-20420?
The severity of CVE-2026-20420 is classified as high due to the potential for remote denial of service vulnerabilities.
How do I fix CVE-2026-20420?
To fix CVE-2026-20420, you should apply the latest patch provided by MediaTek for the affected devices.
What devices are affected by CVE-2026-20420?
CVE-2026-20420 affects several MediaTek NR series devices including NR15, NR16, NR17, and NR17R.
Can CVE-2026-20420 be exploited without user interaction?
Yes, CVE-2026-20420 can be exploited remotely without any user interaction required.
What is the risk of CVE-2026-20420?
The risk associated with CVE-2026-20420 includes a potential system crash leading to denial of service if exploited by connecting to a rogue base station.