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CVE-2026-20452

HighPublished

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...

Published: Jun 1, 2026
Updated: Jun 2, 2026
Assigning CNA: MediaTek
Evidence observed: Aug 17, 2026

Primary CVSS

8.0/ 10High

nvd · CVSS 3.1

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

EPSS probability estimate

0.4%

Low · next 30 days

Percentile: 37.2%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

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.

Sources

mediatek-wlan-heap-overflow-cve-2026-20452-filogic-router-rceExploit
Proof-of-concept exploit for CVE-2026-20452, a heap-based buffer overflow in MediaTek WLAN AP drivers. Uses scapy to send crafted Wi-Fi management frames to trigger remote code execution on affected Filogic routers.

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