CVE-2026-20432: CWE-787 Out-of-bounds Write in MediaTek, Inc. MediaTek chipset
CVE-2026-20432 is a high-severity vulnerability in MediaTek chipsets involving an out-of-bounds write in the modem component due to a missing bounds check. Exploitation requires user interaction and a connection to a rogue base station controlled by an attacker. Successful exploitation could lead to remote escalation of privilege with high impact on confidentiality, integrity, and availability. A patch identified as MOLY01406170 exists, but no official remediation level or patch availability confirmation is provided in the data. The vulnerability affects a wide range of MediaTek chipset models.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-20432) is an out-of-bounds write (CWE-787) in the modem of MediaTek chipsets caused by a missing bounds check. It allows an attacker controlling a rogue base station to remotely escalate privileges on a user equipment (UE) device after user interaction. The CVSS v3.1 score is 8.0 (high), with attack vector requiring adjacent network access, low attack complexity, no privileges required, user interaction required, and impacts on confidentiality, integrity, and availability. A patch is referenced by ID MOLY01406170, but no explicit vendor advisory or patch availability status is provided.
Potential Impact
If exploited, this vulnerability could allow an attacker to remotely escalate privileges on affected devices, potentially compromising confidentiality, integrity, and availability of the device. Exploitation requires the device to connect to a rogue base station and user interaction. There are no known exploits in the wild as of the published date.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. The patch ID MOLY01406170 is referenced, indicating a fix may exist. Until official confirmation, users should avoid connecting to untrusted base stations and follow vendor instructions once available.
CVE-2026-20432: CWE-787 Out-of-bounds Write in MediaTek, Inc. MediaTek chipset
Description
CVE-2026-20432 is a high-severity vulnerability in MediaTek chipsets involving an out-of-bounds write in the modem component due to a missing bounds check. Exploitation requires user interaction and a connection to a rogue base station controlled by an attacker. Successful exploitation could lead to remote escalation of privilege with high impact on confidentiality, integrity, and availability. A patch identified as MOLY01406170 exists, but no official remediation level or patch availability confirmation is provided in the data. The vulnerability affects a wide range of MediaTek chipset models.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-20432) is an out-of-bounds write (CWE-787) in the modem of MediaTek chipsets caused by a missing bounds check. It allows an attacker controlling a rogue base station to remotely escalate privileges on a user equipment (UE) device after user interaction. The CVSS v3.1 score is 8.0 (high), with attack vector requiring adjacent network access, low attack complexity, no privileges required, user interaction required, and impacts on confidentiality, integrity, and availability. A patch is referenced by ID MOLY01406170, but no explicit vendor advisory or patch availability status is provided.
Potential Impact
If exploited, this vulnerability could allow an attacker to remotely escalate privileges on affected devices, potentially compromising confidentiality, integrity, and availability of the device. Exploitation requires the device to connect to a rogue base station and user interaction. There are no known exploits in the wild as of the published date.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. The patch ID MOLY01406170 is referenced, indicating a fix may exist. Until official confirmation, users should avoid connecting to untrusted base stations and follow vendor instructions once available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- MediaTek
- Date Reserved
- 2025-11-03T01:30:59.011Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69d47ddc0a160ebd9234c831
Added to database: 4/7/2026, 3:45:32 AM
Last enriched: 4/14/2026, 3:51:57 PM
Last updated: 5/22/2026, 4:06:12 PM
Views: 69
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