In wlan, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote (proximal/adjacent) escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00461651; Issue ID: MSV-4758.

Metrics

No CVSS v4.0

Attack Vector Adjacent Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact total

Affected Vendors & Products

Vendors Products
Mediatek
  • Mt6890
  • Mt7615
  • Mt7915
  • Mt7916
  • Mt7981
  • Mt7986
  • Software Development Kit
Openwrt
  • Openwrt

Configuration 1 [-]

AND
OR cpe:2.3:a:mediatek:software_development_kit:*:*:*:*:*:*:*:*
cpe:2.3:o:openwrt:openwrt:19.07.0:-:*:*:*:*:*:*
cpe:2.3:o:openwrt:openwrt:21.02.0:-:*:*:*:*:*:*
cpe:2.3:o:openwrt:openwrt:23.05.0:-:*:*:*:*:*:*
OR cpe:2.3:h:mediatek:mt6890:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt7615:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt7915:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt7916:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt7981:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt7986:-:*:*:*:*:*:*:*

No data.

References
Link Providers
https://corp.mediatek.com/product-security-bulletin/February-2026 cve-icon cve-icon
History

Wed, 04 Feb 2026 14:00:00 +0000

Type Values Removed Values Added
First Time appeared Mediatek software Development Kit
Openwrt
Openwrt openwrt
Weaknesses CWE-787
CPEs cpe:2.3:a:mediatek:software_development_kit:*:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6890:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt7615:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt7915:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt7916:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt7981:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt7986:-:*:*:*:*:*:*:*
cpe:2.3:o:openwrt:openwrt:19.07.0:-:*:*:*:*:*:*
cpe:2.3:o:openwrt:openwrt:21.02.0:-:*:*:*:*:*:*
cpe:2.3:o:openwrt:openwrt:23.05.0:-:*:*:*:*:*:*
Vendors & Products Mediatek software Development Kit
Openwrt
Openwrt openwrt

Wed, 04 Feb 2026 12:45:00 +0000

Type Values Removed Values Added
First Time appeared Mediatek
Mediatek mt6890
Mediatek mt7615
Mediatek mt7915
Mediatek mt7916
Mediatek mt7981
Mediatek mt7986
Vendors & Products Mediatek
Mediatek mt6890
Mediatek mt7615
Mediatek mt7915
Mediatek mt7916
Mediatek mt7981
Mediatek mt7986

Tue, 03 Feb 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 8, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

 cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Mon, 02 Feb 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 8, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

ssvc

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

Mon, 02 Feb 2026 08:30:00 +0000

Type Values Removed Values Added
Description In wlan, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote (proximal/adjacent) escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00461651; Issue ID: MSV-4758.
Weaknesses CWE-122
References
cve-icon MITRE

Status: PUBLISHED

Assigner: MediaTek

Published: 2026-02-02T08:14:56.694Z

Updated: 2026-02-03T14:54:18.206Z

Reserved: 2025-11-03T01:30:59.008Z

Link: CVE-2026-20408

cve-icon Vulnrichment

Updated: 2026-02-02T14:02:20.563Z

cve-icon NVD

Status : Analyzed

Published: 2026-02-02T09:15:55.657

Modified: 2026-02-04T13:48:41.430

Link: CVE-2026-20408

cve-icon Redhat

No data.