CVE-2026-20452

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Summary

CVECVE-2026-20452
StatePUBLISHED
AssignerMediaTek
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-01 04:16:21 UTC
Updated2026-06-01 18:12:11 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 8 HIGH from ADP

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.000190000 probability, percentile 0.056320000 (date 2026-06-01)

Problem Types: CWE-122 | CWE-122 CWE-122 Heap Overflow

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED8HIGHCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary8HIGHCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Mediatek Mt6890 - All All All
Operating System Mediatek Mt6890 Firmware - All All All
Hardware Mediatek Mt7615 - All All All
Operating System Mediatek Mt7615 Firmware - All All All
Hardware Mediatek Mt7915 - All All All
Operating System Mediatek Mt7915 Firmware - All All All
Hardware Mediatek Mt7916 - All All All
Operating System Mediatek Mt7916 Firmware - All All All
Hardware Mediatek Mt7981 - All All All
Operating System Mediatek Mt7981 Firmware - All All All
Hardware Mediatek Mt7986 - All All All
Operating System Mediatek Mt7986 Firmware - All All All
Hardware Mediatek Mt7990 - All All All
Operating System Mediatek Mt7990 Firmware - All All All
Hardware Mediatek Mt7992 - All All All
Operating System Mediatek Mt7992 Firmware - All All All
Hardware Mediatek Mt7993 - All All All
Operating System Mediatek Mt7993 Firmware - All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA MediaTek Inc. MediaTek Chipset affected MT6890 Not specified
CNA MediaTek Inc. MediaTek Chipset affected MT7615 Not specified
CNA MediaTek Inc. MediaTek Chipset affected MT7915 Not specified
CNA MediaTek Inc. MediaTek Chipset affected MT7916 Not specified
CNA MediaTek Inc. MediaTek Chipset affected MT7981 Not specified
CNA MediaTek Inc. MediaTek Chipset affected MT7986 Not specified
CNA MediaTek Inc. MediaTek Chipset affected MT7990 Not specified
CNA MediaTek Inc. MediaTek Chipset affected MT7992 Not specified
CNA MediaTek Inc. MediaTek Chipset affected MT7993 Not specified

References

ReferenceSourceLinkTags
corp.mediatek.com/product-security-bulletin/June-2026 [email protected] corp.mediatek.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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