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CVE-2026-20523

Last refreshed2026-11-04

Status: UPDATED  |  Advisory ID: CVE-2026-20523

Key Details

CVECVE-2026-20523
CVSS Score / Version
8.4 (High) / CVSS v3.1
Updated2026-11-03
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS Prose
attack vector is local; attack complexity is low; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products
see table below
Classified as
CWE-787 (Out-of-bounds Write)

Affected Products, Subsystems & Sectors

VendorProductAffected VersionsPatch Status
MediaTek, Inc.MediaTek chipset
MediaTekmt6993_firmware
MediaTekmt8781_firmware
MediaTekmt8910_firmware
MediaTekmt8188_firmware
MediaTekmt8189_firmware
MediaTekmt8668_firmware
MediaTekmt8793_firmware
MediaTekmt6881_firmware
MediaTekmt8875_firmware
SubsystemsGeneral OT
SectorsMultiple

What to Know

In neuropilot, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11249062; Issue ID: MSV-9171. (NVD)

What to Do

Monitor MediaTek, Inc.'s and MediaTek's web pages for any future patch releases. See vendor advisory link below.

References

SourceReference
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-20523
CVEhttps://www.cve.org/CVERecord?id=CVE-2026-20523
Vendor advisoryhttps://www.mediatek.com/product-security-bulletin/October-2026
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