CVE-2026-20456

Published Jun 1, 2026 CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Description
In wlan STA driver, there is a possible system crash due to a missing bounds check. This could lead to local denial of service with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00480851; Issue ID: MSV-6338.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Mediatek
Mediatek mt7902
Mediatek mt7902 Firmware
Mediatek mt7920
Mediatek mt7920 Firmware
Mediatek mt7921
Mediatek mt7921 Firmware
Mediatek mt7922
Mediatek mt7922 Firmware
Mediatek mt7925
Mediatek mt7925 Firmware
Mediatek mt7927
Mediatek mt7927 Firmware
CPEs cpe:2.3:h:mediatek:mt7902:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt7920:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt7921:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt7922:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt7925:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt7927:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt7902_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt7920_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt7921_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt7922_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt7925_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt7927_firmware:-:*:*:*:*:*:*:*
Vendors & Products Mediatek
Mediatek mt7902
Mediatek mt7902 Firmware
Mediatek mt7920
Mediatek mt7920 Firmware
Mediatek mt7921
Mediatek mt7921 Firmware
Mediatek mt7922
Mediatek mt7922 Firmware
Mediatek mt7925
Mediatek mt7925 Firmware
Mediatek mt7927
Mediatek mt7927 Firmware
Type Values Removed Values Added
Title Missing Bounds Check in MediaTek WLAN Driver Leads to Local Denial of Service
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Missing Bounds Check in MediaTek WLAN Driver Leads to Local Denial of Service
First Time appeared Mediatek, Inc.
Mediatek, Inc. mediatek Chipset
Vendors & Products Mediatek, Inc.
Mediatek, Inc. mediatek Chipset
Type Values Removed Values Added
Description In wlan STA driver, there is a possible system crash due to a missing bounds check. This could lead to local denial of service with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00480851; Issue ID: MSV-6338.
Weaknesses CWE-787
References