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CVE Vulnerability Details :
CVE-2026-20430
PUBLISHED
More InfoOfficial Page
Assigner-MediaTek
Assigner Org ID-ee979b05-11f8-4f25-a7e0-a1fa9c190374
View Known Exploited Vulnerability (KEV) details
Published At-02 Mar, 2026 | 08:39
Updated At-03 Mar, 2026 | 04:55
Rejected At-
▼CVE Numbering Authority (CNA)

In wlan AP FW, there is a possible out of bounds write due to an incorrect bounds check. 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: WCNCR00467553; Issue ID: MSV-5151.

Affected Products
Vendor
MediaTek Inc.MediaTek, Inc.
Product
MT6890, MT7915, MT7916, MT7981, MT7986
Versions
Affected
  • SDK release 7.6.7.3 and before / openWRT 19.07, 21.02, 23.05
Problem Types
TypeCWE IDDescription
CWECWE-787CWE-787 Out-of-bounds Write
Type: CWE
CWE ID: CWE-787
Description: CWE-787 Out-of-bounds Write
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://corp.mediatek.com/product-security-bulletin/March-2026
N/A
Hyperlink: https://corp.mediatek.com/product-security-bulletin/March-2026
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
3.18.8HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Version: 3.1
Base score: 8.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found