CVE-2026-20526: High severity MediaTek Modem vulnerability
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: MOLY01898195; Issue ID: MSV-8906.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
android/:unknown:to a version that resolves this vulnerability.Fixed in SoCVersion:2026-11-05 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Patch MOLY01898195
Event History
Frequently Asked Questions
What conditions must an attacker create to exploit this issue?
The target UE must connect to a rogue base station controlled by the attacker, and user interaction is required. The attacker does not need additional execution privileges.
Which devices should be prioritized for triage?
Prioritize devices using MediaTek Modem components, particularly where users could be induced to connect to an attacker-controlled rogue base station. The provided information does not identify affected device models or software versions.
What identifiers can be used to track remediation with the vendor?
Use Patch ID MOLY01898195 and Issue ID MSV-8906 when tracking the fix or discussing remediation with MediaTek.