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Vulnerability record · CVE-2026-20453 · published 1 June 2026

CVE-2026-20453: Mediatek mt8673 firmware out-of-bounds write vulnerability

Mediatek · Mt8673 Firmware

In geniezone, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10886526; Issue ID: MSV-6791.

6.7 CVSS 3.1 Medium EPSS 0.11% · top 98.7% CWE-787 · Out-of-bounds write
6.7CVSS 3.1 base score
0.11%EPSS exploitation probability, 30 days
NoNot in CISA KEV
36Affected product versions listed by NVD
1References
22 Jul 2026Last modified by NVD

Description

In geniezone, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10886526; Issue ID: MSV-6791.

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

Affected products

36 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Source: NIST National Vulnerability Database (record CVE-2026-20453), CISA KEV, FIRST EPSS (scores of 2026-09-25). This page is refreshed as NVD updates the record.