CVE-2026-20479

High

Description

In Modem, there is a possible out of bounds read 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, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY00741071; Issue ID: MSV-7620.

SeverityHigh
CVSS7.5
Exploit probability—
ProductMediatek Mt2735 Firmware
PublishedAug 3, 2026
First seenAug 3, 2026

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
mediatek mt2735_firmwareNo range specified—
mediatek mt6833_firmwareNo range specified—
mediatek mt6853_firmwareNo range specified—
mediatek mt6855_firmwareNo range specified—
mediatek mt6873_firmwareNo range specified—
mediatek mt6875_firmwareNo range specified—
mediatek mt6877_firmwareNo range specified—
mediatek mt6880_firmwareNo range specified—
mediatek mt6883_firmwareNo range specified—
mediatek mt6885_firmwareNo range specified—
mediatek mt6889_firmwareNo range specified—
mediatek mt6890_firmwareNo range specified—
mediatek mt6891_firmwareNo range specified—
mediatek mt6893_firmwareNo range specified—
mediatek mt8675_firmwareNo range specified—
mediatek mt8771_firmwareNo range specified—
mediatek mt8791_firmwareNo range specified—
mediatek mt8791t_firmwareNo range specified—
mediatek mt8797_firmwareNo range specified—

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