CVE-2026-20461: CWE-787 Out-of-bounds Write in MediaTek, Inc. MediaTek chipset
CVE-2026-20461 is an out-of-bounds write vulnerability in the modem component of MediaTek chipsets. It occurs due to a missing bounds check and can be triggered remotely if a user equipment (UE) connects to a rogue base station controlled by an attacker. Exploitation does not require user interaction or additional execution privileges. The vulnerability affects multiple specific MediaTek chipset models. No official patch or remediation level has been confirmed yet.
AI Analysis
Technical Summary
This vulnerability (CWE-787) involves an out-of-bounds write in the modem of MediaTek chipsets caused by a missing bounds check. An attacker controlling a rogue base station can remotely trigger this condition when a UE connects, potentially causing a denial of service. Exploitation requires no user interaction or elevated privileges. The affected chipsets include a wide range of MediaTek models explicitly enumerated. There is no CVSS score or confirmed remediation level available at this time.
Potential Impact
The primary impact is a remote denial of service on devices using the affected MediaTek chipsets. Since exploitation requires no user interaction and no additional privileges, the vulnerability could be triggered by an attacker operating a rogue base station within radio range of the target device. There is no information about code execution or data compromise.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. The vendor has assigned patch IDs (MOLY01267281 / MOLY01318201), but no official fix or remediation level has been published. Monitor MediaTek advisories for updates and apply patches once available.
CVE-2026-20461: CWE-787 Out-of-bounds Write in MediaTek, Inc. MediaTek chipset
Description
CVE-2026-20461 is an out-of-bounds write vulnerability in the modem component of MediaTek chipsets. It occurs due to a missing bounds check and can be triggered remotely if a user equipment (UE) connects to a rogue base station controlled by an attacker. Exploitation does not require user interaction or additional execution privileges. The vulnerability affects multiple specific MediaTek chipset models. No official patch or remediation level has been confirmed yet.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-787) involves an out-of-bounds write in the modem of MediaTek chipsets caused by a missing bounds check. An attacker controlling a rogue base station can remotely trigger this condition when a UE connects, potentially causing a denial of service. Exploitation requires no user interaction or elevated privileges. The affected chipsets include a wide range of MediaTek models explicitly enumerated. There is no CVSS score or confirmed remediation level available at this time.
Potential Impact
The primary impact is a remote denial of service on devices using the affected MediaTek chipsets. Since exploitation requires no user interaction and no additional privileges, the vulnerability could be triggered by an attacker operating a rogue base station within radio range of the target device. There is no information about code execution or data compromise.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. The vendor has assigned patch IDs (MOLY01267281 / MOLY01318201), but no official fix or remediation level has been published. Monitor MediaTek advisories for updates and apply patches once available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- MediaTek
- Date Reserved
- 2025-11-03T01:30:59.014Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a448b4d27e9c79719e6c5ed
Added to database: 07/01/2026, 03:36:45 UTC
Last enriched: 07/01/2026, 03:51:51 UTC
Last updated: 07/01/2026, 04:12:14 UTC
Views: 4
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