CVE-2026-20566

medium

Description

In Modem, there is a possible out of bounds write due to a missing bounds check. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, if a malicious actor has already obtained the System privilege. User interaction is needed for exploitation. Patch ID: MOLY01923663 / ALPS11315955; Issue ID: MSV-10866.

References

https://www.mediatek.com/product-security-bulletin/November-2026

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-115031

Details

Source: Mitre, NVD

Published: 2026-11-02

Updated: 2026-11-02

Risk Information

CVSS v2

Base Score: 4.6

Vector: CVSS2#AV:A/AC:H/Au:N/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 4.8

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

Severity: Medium

EPSS

EPSS: 0.00156