CVE-2026-20490: CWE-125 Out-of-bounds Read in MediaTek, Inc. MediaTek chipset
CVE-2026-20490 is an out-of-bounds read vulnerability in the ccci component of MediaTek chipsets MT6813, MT6986, and MT6988. The flaw arises from a missing bounds check and can be exploited locally by an attacker with System privileges to cause a denial of service. No user interaction is required for exploitation. There is no confirmed patch or official remediation available at this time.
AI Analysis
Technical Summary
This vulnerability involves an out-of-bounds read (CWE-125) in the ccci component of specific MediaTek chipsets (MT6813, MT6986, MT6988) due to a missing bounds check. Exploitation requires the attacker to already have System-level privileges and can result in a local denial of service. The vulnerability does not require user interaction. No CVSS score or vendor advisory detailing patch availability is currently provided.
Potential Impact
An attacker with System privileges can exploit this vulnerability to cause a local denial of service by triggering an out-of-bounds read. There is no indication of remote exploitation or privilege escalation. The impact is limited to denial of service under the condition that the attacker already has high-level system access.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or patch information is available, monitor MediaTek advisories for updates. No specific mitigations are provided in the current data.
CVE-2026-20490: CWE-125 Out-of-bounds Read in MediaTek, Inc. MediaTek chipset
Description
CVE-2026-20490 is an out-of-bounds read vulnerability in the ccci component of MediaTek chipsets MT6813, MT6986, and MT6988. The flaw arises from a missing bounds check and can be exploited locally by an attacker with System privileges to cause a denial of service. No user interaction is required for exploitation. There is no confirmed patch or official remediation available at this time.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves an out-of-bounds read (CWE-125) in the ccci component of specific MediaTek chipsets (MT6813, MT6986, MT6988) due to a missing bounds check. Exploitation requires the attacker to already have System-level privileges and can result in a local denial of service. The vulnerability does not require user interaction. No CVSS score or vendor advisory detailing patch availability is currently provided.
Potential Impact
An attacker with System privileges can exploit this vulnerability to cause a local denial of service by triggering an out-of-bounds read. There is no indication of remote exploitation or privilege escalation. The impact is limited to denial of service under the condition that the attacker already has high-level system access.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or patch information is available, monitor MediaTek advisories for updates. No specific mitigations are provided in the current data.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- MediaTek
- Date Reserved
- 2025-11-03T01:30:59.023Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a700184bf32cb7a34d5cacb
Added to database: 08/03/2026, 02:48:36 UTC
Last enriched: 08/03/2026, 03:07:47 UTC
Last updated: 08/03/2026, 03:07:47 UTC
Views: 2
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