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HIGHCVE-2026-20434Published Modified CNA MediaTek

CVE-2026-20434: In Modem, there is a possible out of bounds write due to a missing bounds check

In Modem, there is a possible out of bounds write due to a missing bounds check. This could lead to remote escalation of privilege, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is needed for exploitation. Patch ID: MOLY00782946; Issue ID: MSV-4135.

Metrics

CVSS v3.1
7.5
Severity
HIGH
Fixed in
—
Affected Products
1
Affected packages
  • MediaTek, Inc. / MediaTek chipset
    MT2735 · MT2737 · MT6739 · MT6761 · MT6762 · MT6762D
CVSS Vector
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
References
CVE-2026-20434: In Modem, there is a possible out of bounds write due to a missing bounds check | HarborGuard CVE