CVE-2026-20420

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.

Score

CVSS 3.1 6.5 Medium

Status

Modified - security@mediatek.com

Published

2026-02-02

Last modified

2026-03-30

Weaknesses

CWE-125

Affected products

• Nr15 (Mediatek)
• Nr16 (Mediatek)
• Nr17 (Mediatek)
• Nr17r (Mediatek)
• Mediatek Chipset (Mediatek Inc.)

References

• https://corp.mediatek.com/product-security-bulletin/February-2026