CVE-2026-20489: Integer Overflow

Published Aug 3, 2026
·
Updated

In display, there is a possible information disclosure due to an integer overflow. This could lead to local information disclosure if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11004274; Issue ID: MSV-7749.

Affected Software

34 affected components
All of the following
MediaTek Mt6991 Firmware
MediaTek Mt6991
All of the following
MediaTek Mt6993 Firmware
MediaTek Mt6993
All of the following
MediaTek Mt8126 Firmware
MediaTek Mt8126
All of the following
MediaTek Mt8171 Firmware
MediaTek Mt8171
All of the following
MediaTek Mt8188 Firmware
MediaTek Mt8188
All of the following
MediaTek Mt8189 Firmware
MediaTek Mt8189
All of the following
MediaTek Mt8367 Firmware
MediaTek Mt8367
All of the following
MediaTek Mt8668 Firmware
MediaTek Mt8668
All of the following
MediaTek Mt8676 Firmware
MediaTek Mt8676
All of the following
MediaTek Mt8678 Firmware
MediaTek Mt8678
All of the following
MediaTek Mt8766 Firmware
MediaTek Mt8766
All of the following
MediaTek Mt8768 Firmware
MediaTek Mt8768
All of the following
MediaTek Mt8781 Firmware
MediaTek Mt8781
All of the following
MediaTek Mt8786 Firmware
MediaTek Mt8786
All of the following
MediaTek Mt8791t Firmware
MediaTek Mt8791t
All of the following
MediaTek Mt8799 Firmware
MediaTek Mt8799
All of the following
MediaTek Mt8910 Firmware
MediaTek Mt8910

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Patch ALPS11004274

Event History

Aug 3, 2026
CVE Published
via MITRE·02:05 AM
Data Sourced
via MITRE·02:05 AM
DescriptionWeakness
Data Sourced
via NVD·03:16 AM
DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2026-20489?

CVE-2026-20489 has a risk rating of 15, indicating a serious security vulnerability.

2

How do I fix CVE-2026-20489?

To resolve CVE-2026-20489, apply the patch identified by ALPS11004274.

3

What is the nature of the vulnerability CVE-2026-20489?

CVE-2026-20489 involves an integer overflow that can lead to local information disclosure.

4

Is user interaction required to exploit CVE-2026-20489?

No, user interaction is not needed for the exploitation of CVE-2026-20489.

5

Who can exploit CVE-2026-20489?

Only a malicious actor with System privilege can exploit CVE-2026-20489.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203