CVE-2026-20456

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.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://corp.mediatek.com/product-security-bulletin/June-2026	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:mediatek:mt7902_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:mediatek:mt7902:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:mediatek:mt7920_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:mediatek:mt7920:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND

cpe:2.3:o:mediatek:mt7921_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:mediatek:mt7921:-:*:*:*:*:*:*:*

Configuration 4 (hide)

AND

cpe:2.3:o:mediatek:mt7922_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:mediatek:mt7922:-:*:*:*:*:*:*:*

Configuration 5 (hide)

AND

cpe:2.3:o:mediatek:mt7925_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:mediatek:mt7925:-:*:*:*:*:*:*:*

Configuration 6 (hide)

AND

cpe:2.3:o:mediatek:mt7927_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:mediatek:mt7927:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-06-01 04:16

Updated : 2026-07-22 07:10

NVD link : CVE-2026-20456

Mitre link : CVE-2026-20456

CVE.ORG link : CVE-2026-20456

JSON object : View

Products Affected

mediatek

mt7925
mt7902
mt7922
mt7927_firmware
mt7902_firmware
mt7920_firmware
mt7920
mt7921
mt7921_firmware
mt7927
mt7922_firmware
mt7925_firmware

CWE

CWE-787

Out-of-bounds Write

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