CVE-2026-20496: Medium severity MediaTek Mt6983 Firmware vulnerability

Published Aug 3, 2026
·
Updated

In geniezone, there is a possible out of bounds read due to a missing bounds check. 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: ALPS11036877; Issue ID: MSV-7132.

Affected Software

34 affected components
All of the following
MediaTek Mt6983 Firmware
MediaTek Mt6983
All of the following
MediaTek Mt8676 Firmware
MediaTek Mt8676
All of the following
MediaTek Mt8678 Firmware
MediaTek Mt8678
All of the following
MediaTek Mt8755 Firmware
MediaTek Mt8755
All of the following
MediaTek Mt8768 Firmware
MediaTek Mt8768
All of the following
MediaTek Mt8771 Firmware
MediaTek Mt8771
All of the following
MediaTek Mt8775 Firmware
MediaTek Mt8775
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 Mt8792 Firmware
MediaTek Mt8792
All of the following
MediaTek Mt8793 Firmware
MediaTek Mt8793
All of the following
MediaTek Mt8796 Firmware
MediaTek Mt8796
All of the following
MediaTek Mt8797 Firmware
MediaTek Mt8797
All of the following
MediaTek Mt8798 Firmware
MediaTek Mt8798
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 ALPS11036877
  2. Compensating control

    If System-level privilege can be obtained by an attacker, reduce exposure by limiting/isolating the affected GenieZone environment so untrusted actors cannot obtain System privilege (since exploitation requires attackers to have already obtained System privilege, and no user interaction is needed).

Event History

Aug 3, 2026
CVE Published
via MITRE·02:06 AM
Data Sourced
via MITRE·02:06 AM
DescriptionWeakness
Data Sourced
via NVD·03:16 AM
DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2026-20496?

CVE-2026-20496 has a risk score of 14, indicating a significant security concern.

2

How do I fix CVE-2026-20496?

To address CVE-2026-20496, apply the patch identified as ALPS11036877.

3

What type of vulnerability is CVE-2026-20496?

CVE-2026-20496 is an out of bounds read vulnerability that can lead to local information disclosure.

4

Does exploiting CVE-2026-20496 require user interaction?

No, exploiting CVE-2026-20496 does not require user interaction once the attacker has obtained System privilege.

5

Who is affected by CVE-2026-20496?

CVE-2026-20496 affects systems running geniezone where the vulnerability allows information disclosure under specific conditions.

Contact

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