High severity · published Jun 1, 2026
CVE-2026-20452
In wlan AP driver, there is a possible memory corruption due to a heap buffer overflow
8.0
CVSS
0.4%
EPSS
No
On KEV
Description
In wlan AP driver, there is a possible memory corruption due to a heap buffer overflow. This could lead to remote (proximal/adjacent) code execution with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00480138; Issue ID: MSV-6295.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 38% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MC
MediaTek chipset · MediaTek, Inc.
MT6890; MT7615; MT7915; MT7916; MT7981; MT7986; +3 more · source: vendor
MF
Mt6890 Firmware · Mediatek
All versions, or not specified · source: NVD
MF
Mt7615 Firmware · Mediatek
All versions, or not specified · source: NVD
MF
Mt7915 Firmware · Mediatek
All versions, or not specified · source: NVD
MF
Mt7916 Firmware · Mediatek
All versions, or not specified · source: NVD
MF
Mt7981 Firmware · Mediatek
All versions, or not specified · source: NVD
MF
Mt7986 Firmware · Mediatek
All versions, or not specified · source: NVD
MF
Mt7990 Firmware · Mediatek
All versions, or not specified · source: NVD
MF
Mt7992 Firmware · Mediatek
All versions, or not specified · source: NVD
MF
Mt7993 Firmware · Mediatek
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-20452
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-20452
Vendor Advisory
https://corp.mediatek.com/product-security-bulletin/June-2026
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