CVE-2026-20408

HIGH EPSS 18.2%
Published Feb 2, 20264mo ago · Modified Jun 17, 20261w ago
8.8 CVSS 3.1
High
Find Similar
Published Feb 2, 2026 4mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
8.8
Exploitability
2.8
Impact
5.9
Vector string
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Adjacent
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
18.2% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 2

CWE-122
CWE-787 Out-of-bounds Write Memory Safety

Affected Products 10

VendorProductVersionRange
mediateksoftware_development_kit* ≤7.6.7.2
openwrtopenwrt19.07.0any
openwrtopenwrt21.02.0any
openwrtopenwrt23.05.0any
mediatekmt6890*any
mediatekmt7615*any
mediatekmt7915*any
mediatekmt7916*any
mediatekmt7981*any
mediatekmt7986*any

References 1

  • corp.mediatek.com https://corp.mediatek.com/product-security-bulletin/February-2026
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.