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.

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Vendors Products
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Mt7902 Firmware Subscribe
Mt7920 Firmware Subscribe
Mt7921 Firmware Subscribe
Mt7922 Firmware Subscribe
Mt7925 Firmware Subscribe
Mt7927 Firmware Subscribe
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Advisories

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Fixes

Solution

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Workaround

No workaround given by the vendor.

History

Mon, 01 Jun 2026 18:00:00 +0000

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

Mon, 01 Jun 2026 13:15:00 +0000

Type Values Removed Values Added
Title Missing Bounds Check in MediaTek WLAN Driver Leads to Local Denial of Service

Mon, 01 Jun 2026 11:30:00 +0000

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'}


Mon, 01 Jun 2026 05:45:00 +0000

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

Mon, 01 Jun 2026 04:00:00 +0000

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

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cve-icon MITRE

Status: PUBLISHED

Assigner: MediaTek

Published:

Updated: 2026-06-01T11:07:30.955Z

Reserved: 2025-11-03T01:30:59.014Z

Link: CVE-2026-20456

cve-icon Vulnrichment

Updated: 2026-06-01T11:07:04.454Z

cve-icon NVD

Status : Analyzed

Published: 2026-06-01T04:16:22.283

Modified: 2026-06-01T17:54:59.503

Link: CVE-2026-20456

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-01T13:00:13Z

Weaknesses