CVE-2026-20447

Description

In geniezone, there is a possible escalation of privilege 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: ALPS10724073; Issue ID: MSV-6296.

CVSS v3.1 Score

6.7

MEDIUM

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

EPSS — Exploit Prediction

0.0002

Probability of exploitation

0.04%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-125 Out-of-bounds Read

Affected Products

Vendor	Product	Versions
mediatek	mt6768_firmware	All
mediatek	mt6768	All
mediatek	mt6789_firmware	All
mediatek	mt6789	All
mediatek	mt6877_firmware	All
mediatek	mt6877	All
mediatek	mt6899_firmware	All
mediatek	mt6899	All
mediatek	mt6989_firmware	All
mediatek	mt6989	All
mediatek	mt6991_firmware	All
mediatek	mt6991	All
mediatek	mt6993_firmware	All
mediatek	mt6993	All
mediatek	mt8196_firmware	All
mediatek	mt8196	All
mediatek	mt8367_firmware	All
mediatek	mt8367	All
mediatek	mt8766_firmware	All
mediatek	mt8766	All
mediatek	mt8768_firmware	All
mediatek	mt8768	All
mediatek	mt8781_firmware	All
mediatek	mt8781	All
mediatek	mt8786_firmware	All
mediatek	mt8786	All
mediatek	mt8788e_firmware	All
mediatek	mt8788e	All
mediatek	mt8791t_firmware	All
mediatek	mt8791t	All
mediatek	mt8793_firmware	All
mediatek	mt8793	All
mediatek	mt8910_firmware	All
mediatek	mt8910	All

References

Advisories & Patches

https://corp.mediatek.com/product-security-bulletin/May-2026

Frequently Asked Questions

What is CVE-2026-20447? +

In geniezone, there is a possible escalation of privilege 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: ALPS10724073; Issue ID: MSV-6296. It has a CVSS v3.1 base score of 6.7 (MEDIUM).

How severe is CVE-2026-20447? +

CVE-2026-20447 has a CVSS v3.1 score of 6.7 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0002, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-20447? +

CVE-2026-20447 affects products from mediatek, specifically: mt6768, mt6768_firmware, mt6789, mt6789_firmware, mt6877, mt6877_firmware, mt6899, mt6899_firmware, mt6989, mt6989_firmware, mt6991, mt6991_firmware, mt6993, mt6993_firmware, mt8196, mt8196_firmware, mt8367, mt8367_firmware, mt8766, mt8766_firmware, mt8768, mt8768_firmware, mt8781, mt8781_firmware, mt8786, mt8786_firmware, mt8788e, mt8788e_firmware, mt8791t, mt8791t_firmware, mt8793, mt8793_firmware, mt8910, mt8910_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-20447? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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