CVE-2026-20404

CVSS 6.5 MEDIUMEPSS 0.5%CWE-787

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 6.5EPSS 0.5%KEV nãoPoC —Patch —

Lifecycle

Feb 02, 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01689248; Issue ID: MSV-4837.

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

MediaTek, Inc. · MediaTek chipset

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References

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