CVE-2026-20452

Name: CVE-2026-20452
Creator: NVD / NIST
Published: 2026-06-01T04:16:21.753+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8/10EPSS 0.43%

Last modified Jun 17, 2026

CVE-2026-20452 is a high-severity vulnerability rated 8/10 on the CVSS scale. 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. EPSS estimates a 0.43% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8/10

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

EPSS Probability

0.43%

34.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-122

Affected Software

Vendor	Product	Versions
Mediatek	Mt6890 Firmware	All versions
Mediatek	Mt7615 Firmware	All versions
Mediatek	Mt7915 Firmware	All versions
Mediatek	Mt7916 Firmware	All versions
Mediatek	Mt7981 Firmware	All versions
Mediatek	Mt7986 Firmware	All versions
Mediatek	Mt7990 Firmware	All versions
Mediatek	Mt7992 Firmware	All versions
Mediatek	Mt7993 Firmware	All versions

References

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

Timeline

Published: Jun 1, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-20452?

How severe is CVE-2026-20452?

CVE-2026-20452 has a CVSS score of 8/10 (HIGH severity). The EPSS model estimates a 0.43% probability of exploitation in the next 30 days.

How do I fix CVE-2026-20452?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-20452?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST