CVE-2026-20500

Published: Sep 7, 2026Modified: Sep 9, 2026

5.5

Vector

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

Exploitability: 1.8 / Impact: 3.6

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Description

In Modem, there is a possible system crash due to improper input validation. This could lead to local denial of service with User execution privileges needed. User interaction is needed for exploitation. Patch ID: MOLY01810811; Issue ID: MSV-9232.

Affected (22)

Products: Mediatek: Mt2716 Firmware, Mt6835 Firmware, Mt6858 Firmware, Mt6878 Firmware, Mt6881 Firmware, Mt6897 Firmware, Mt6899 Firmware, Mt6982vb Firmware, Mt6986 Firmware, Mt6988 Firmware, Mt6991 Firmware, Mt6993 Firmware, Mt8668 Firmware, Mt8676 Firmware, Mt8678 Firmware, Mt8755 Firmware, Mt8775 Firmware, Mt8792 Firmware, Mt8793 Firmware, Mt8863 Firmware, Mt8873 Firmware, Mt8883 Firmware

Mediatek

22 products

Configuration A

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt2716 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt2716	All versions

Configuration B

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6835 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6835	All versions

Configuration C

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6858 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6858	All versions

Configuration D

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6878 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6878	All versions

Configuration E

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6881 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6881	All versions

Configuration F

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6897 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6897	All versions

Configuration G

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6899 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6899	All versions

Configuration H

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6982vb Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6982vb	All versions

Configuration I

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6986 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6986	All versions

Configuration J

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6988 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6988	All versions

Configuration K

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6991 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6991	All versions

Configuration L

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt6993 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt6993	All versions

Configuration M

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8668 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8668	All versions

Configuration N

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8676 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8676	All versions

Configuration O

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8678 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8678	All versions

Configuration P

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8755 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8755	All versions

Configuration Q

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8775 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8775	All versions

Configuration R

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8792 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8792	All versions

Configuration S

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8793 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8793	All versions

Configuration T

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8863 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8863	All versions

Configuration U

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8873 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8873	All versions

Configuration V

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mediatek Mt8883 Firmware	All versions

Running on/with	Platform Versions
Mediatek Mt8883	All versions

Related CWEs

CWE-295

Improper Certificate Validation

The product does not validate, or incorrectly validates, a certificate.

References (1)

https://www.mediatek.com/product-security-bulletin/September-2026

Source: security@mediatek.com

Vendor Advisory

Timeline

No history available yet.