SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2026-20431

In Modem, there is a possible system crash due to a logic error.

MEDIUM 6.5EPSS 0.31%

Does this matter?

Lower severity and a low EPSS score (0.31%). Track it; it rarely justifies an emergency change on its own.

Description

In Modem, there is a possible system crash due to a logic error. 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: MOLY01106496; Issue ID: MSV-4467.

CVSS 3.1
6.5 MEDIUMCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
0.31% probability · 24th percentile
CISA KEV
Not listed
Weakness
CWE-770
Affected
mediatek/mt6813 firmware · mediatek/mt6815 firmware · mediatek/mt6835 firmware · mediatek/mt6878 firmware · mediatek/mt6897 firmware · mediatek/mt6899 firmware · mediatek/mt6986 firmware · mediatek/mt6991 firmware · mediatek/mt6993 firmware · mediatek/mt8668 firmware · mediatek/mt8676 firmware · mediatek/mt8678 firmware · mediatek/mt8755 firmware · mediatek/mt8775 firmware · mediatek/mt8792 firmware · mediatek/mt8793 firmware · mediatek/mt8863 firmware · mediatek/mt8873 firmware · mediatek/mt8883 firmware
Source
security@mediatek.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.