CVE-2026-20483: CWE-862 Missing Authorization in MediaTek, Inc. MediaTek chipset
CVE-2026-20483 is a vulnerability in MediaTek chipsets involving a missing permission check in the Telephony component. This flaw allows local escalation of privilege without requiring additional execution privileges or user interaction. Multiple MediaTek chipset models are affected. No patch or official remediation information is currently available.
AI Analysis
Technical Summary
This vulnerability (CWE-862) in MediaTek chipsets arises from a missing authorization check in the Telephony subsystem. An attacker with local access can escalate privileges without needing extra execution rights or user interaction. The issue affects a wide range of MediaTek chipset models as explicitly listed. There is no CVSS score or detailed vendor advisory available, and no patch or remediation level has been confirmed. The vulnerability was published on August 3, 2026, and is identified by Patch ID ALPS11087526 and Issue ID MSV-8243.
Potential Impact
The vulnerability allows a local attacker to escalate privileges on affected MediaTek chipsets due to missing permission checks in Telephony. This could lead to unauthorized access or control escalation on devices using these chipsets. No additional execution privileges or user interaction are required for exploitation, increasing the risk of local attacks. There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary mitigation has been published. Users and administrators should monitor MediaTek advisories for updates and apply patches once available.
CVE-2026-20483: CWE-862 Missing Authorization in MediaTek, Inc. MediaTek chipset
Description
CVE-2026-20483 is a vulnerability in MediaTek chipsets involving a missing permission check in the Telephony component. This flaw allows local escalation of privilege without requiring additional execution privileges or user interaction. Multiple MediaTek chipset models are affected. No patch or official remediation information is currently available.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-862) in MediaTek chipsets arises from a missing authorization check in the Telephony subsystem. An attacker with local access can escalate privileges without needing extra execution rights or user interaction. The issue affects a wide range of MediaTek chipset models as explicitly listed. There is no CVSS score or detailed vendor advisory available, and no patch or remediation level has been confirmed. The vulnerability was published on August 3, 2026, and is identified by Patch ID ALPS11087526 and Issue ID MSV-8243.
Potential Impact
The vulnerability allows a local attacker to escalate privileges on affected MediaTek chipsets due to missing permission checks in Telephony. This could lead to unauthorized access or control escalation on devices using these chipsets. No additional execution privileges or user interaction are required for exploitation, increasing the risk of local attacks. There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary mitigation has been published. Users and administrators should monitor MediaTek advisories for updates and apply patches once available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- MediaTek
- Date Reserved
- 2025-11-03T01:30:59.021Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a700183bf32cb7a34d5caaf
Added to database: 08/03/2026, 02:48:35 UTC
Last enriched: 08/03/2026, 03:08:34 UTC
Last updated: 08/03/2026, 03:08:34 UTC
Views: 2
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