CVE-2026-20494: CWE-125 Out-of-bounds Read in MediaTek, Inc. MediaTek chipset
CVE-2026-20494 is an out-of-bounds read vulnerability in MediaTek chipsets MT6890, MT6988, and MT6990 related to wifi functionality. The flaw arises from a missing bounds check, potentially allowing local information disclosure. Exploitation requires the attacker to have already obtained System privilege, and no user interaction is needed. No CVSS score is provided, and no official patch or remediation level has been confirmed yet.
AI Analysis
Technical Summary
This vulnerability (CWE-125) in MediaTek wifi chipsets MT6890, MT6988, and MT6990 involves an out-of-bounds read caused by a missing bounds check. It can lead to local information disclosure if a malicious actor with System privileges exploits it. The issue does not require user interaction. Although patch identifiers are referenced (ALPS10960006, BORA00155314, BORA00155001, BORA00154907), no explicit patch availability or remediation level is confirmed in the advisory data.
Potential Impact
The vulnerability allows a local attacker with System privileges to read memory out-of-bounds, potentially disclosing sensitive information. There is no indication of remote exploitation or privilege escalation from lower privilege levels. No known exploits are reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official remediation level or patch availability is stated, monitor MediaTek advisories for updates. No specific mitigations are provided in the current data.
CVE-2026-20494: CWE-125 Out-of-bounds Read in MediaTek, Inc. MediaTek chipset
Description
CVE-2026-20494 is an out-of-bounds read vulnerability in MediaTek chipsets MT6890, MT6988, and MT6990 related to wifi functionality. The flaw arises from a missing bounds check, potentially allowing local information disclosure. Exploitation requires the attacker to have already obtained System privilege, and no user interaction is needed. No CVSS score is provided, and no official patch or remediation level has been confirmed yet.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-125) in MediaTek wifi chipsets MT6890, MT6988, and MT6990 involves an out-of-bounds read caused by a missing bounds check. It can lead to local information disclosure if a malicious actor with System privileges exploits it. The issue does not require user interaction. Although patch identifiers are referenced (ALPS10960006, BORA00155314, BORA00155001, BORA00154907), no explicit patch availability or remediation level is confirmed in the advisory data.
Potential Impact
The vulnerability allows a local attacker with System privileges to read memory out-of-bounds, potentially disclosing sensitive information. There is no indication of remote exploitation or privilege escalation from lower privilege levels. No known exploits are reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official remediation level or patch availability is stated, 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
- 2025-11-03T01:30:59.026Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a700184bf32cb7a34d5cadb
Added to database: 08/03/2026, 02:48:36 UTC
Last enriched: 08/03/2026, 03:07:19 UTC
Last updated: 08/03/2026, 03:07:19 UTC
Views: 2
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