CVE-2026-20522: CWE-787 Out-of-bounds Write in MediaTek, Inc. MediaTek chipset
Description
CVE-2026-20522 is an out-of-bounds write vulnerability in the neuropilot component of MediaTek chipsets. This flaw arises from a missing bounds check and can lead to local privilege escalation without requiring additional execution privileges or user interaction. The issue affects specific MediaTek chipset models and has been assigned Patch ID ALPS11249050. No CVSS score is provided, and no known exploits are reported in the wild.
Affected software
MediaTek, Inc.
MediaTek chipset
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2026-20522 involves an out-of-bounds write in the neuropilot component of MediaTek chipsets due to a missing bounds check. This flaw allows an attacker with local access to escalate privileges without needing further execution privileges or user interaction. The affected chipsets include MT6881, MT6993, MT8188, MT8189, MT8668, MT8781, MT8875, and MT8910. The issue has been documented with Patch ID ALPS11249050 and Issue ID MSV-9172. No CVSS score or detailed exploit information is available.
Potential Impact
Successful exploitation of this vulnerability could allow a local attacker to escalate privileges on the affected MediaTek chipsets. No additional execution privileges or user interaction are required, increasing the risk of local attacks. There are no reports of active exploitation in the wild.
Mitigation Recommendations
A patch identified as ALPS11249050 addresses this vulnerability. Users and vendors should apply this official fix to affected MediaTek chipsets to remediate the issue. Since the vulnerability requires local access, limiting local access to trusted users may reduce risk until patched.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- MediaTek
- Date Reserved
- 2025-11-03T01:30:59.032Z
- State
- PUBLISHED
Threat ID: 6ac309122cdf04f656a0bf92
Added to database: 10/05/2026, 02:18:58 UTC
Last enriched: 10/05/2026, 02:48:19 UTC
Last updated: 10/05/2026, 02:48:21 UTC
Views: 4
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