CVE-2026-20452

HIGH
8
CVSS Score
Published: June 1, 2026 at 03:20 AM UTC
Updated: July 22, 2026 at 07:37 AM UTC
18 products affected across 1 vendorMT7615 FirmwareMT7915 FirmwareMT6890 Firmware

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Severity
HIGH8
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions
mediatek-mt6890 (same device)
All versions
mediatek-mt7615 (same device)
All versions
mediatek-mt7915 (same device)
All versions
mediatek-mt7916 (same device)
All versions
mediatek-mt7981 (same device)
All versions
mediatek-mt7986 (same device)
All versions
mediatek-mt7990 (same device)
All versions
mediatek-mt7992 (same device)
All versions
mediatek-mt7993 (same device)
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (1)

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8HIGHCISA-ADP
Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-122

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