CVE-2026-20575 - Vulnerability Details

In afe, there is a possible memory corruption due to use after free. 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: ALPS11431394; Issue ID: MSV-9921.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact total

Vendors	Products
Mediatek	Mediatek Chipset Mt6739 Mt6739 Firmware Mt6761 Mt6761 Firmware Mt6765 Mt6765 Firmware Mt6768 Mt6768 Firmware Mt6769 Mt6769 Firmware Mt6781 Mt6781 Firmware Mt6789 Mt6789 Firmware Mt6835 Mt6835 Firmware Mt6853 Mt6853 Firmware Mt6855 Mt6855 Firmware Mt6858 Mt6858 Firmware Mt6877 Mt6877 Firmware Mt6878 Mt6878 Firmware Mt6879 Mt6879 Firmware Mt6881 Mt6881 Firmware Mt6883 Mt6883 Firmware Mt6885 Mt6885 Firmware Mt6886 Mt6886 Firmware Mt6889 Mt6889 Firmware Mt6893 Mt6893 Firmware Mt6895 Mt6895 Firmware Mt6897 Mt6897 Firmware Mt6899 Mt6899 Firmware Mt6983 Mt6983 Firmware Mt6985 Mt6985 Firmware Mt6989 Mt6989 Firmware Mt6991 Mt6991 Firmware Mt6993 Mt6993 Firmware
Mediatek, Inc.	Mediatek Chipset

Configuration 1 [-]

AND

cpe:2.3:o:mediatek:mt6739_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:mediatek:mt6739:-:*:*:*:*:*:*:*

Configuration 2 [-]

AND

cpe:2.3:o:mediatek:mt6761_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:mediatek:mt6761:-:*:*:*:*:*:*:*

Configuration 3 [-]

AND

cpe:2.3:o:mediatek:mt6765_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:mediatek:mt6765:-:*:*:*:*:*:*:*

Configuration 4 [-]

AND

cpe:2.3:o:mediatek:mt6768_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:mediatek:mt6768:-:*:*:*:*:*:*:*

Configuration 5 [-]

AND

cpe:2.3:o:mediatek:mt6769_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:mediatek:mt6769:-:*:*:*:*:*:*:*

Configuration 6 [-]

AND

cpe:2.3:o:mediatek:mt6781_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:mediatek:mt6781:-:*:*:*:*:*:*:*

Configuration 7 [-]

AND

cpe:2.3:o:mediatek:mt6789_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:mediatek:mt6789:-:*:*:*:*:*:*:*

Configuration 8 [-]

AND

cpe:2.3:o:mediatek:mt6835_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:mediatek:mt6835:-:*:*:*:*:*:*:*

Configuration 9 [-]

AND

cpe:2.3:o:mediatek:mt6853_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:mediatek:mt6853:-:*:*:*:*:*:*:*

Configuration 10 [-]

AND

cpe:2.3:o:mediatek:mt6855_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:mediatek:mt6855:-:*:*:*:*:*:*:*

Configuration 11 [-]

AND

cpe:2.3:o:mediatek:mt6858_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:mediatek:mt6858:-:*:*:*:*:*:*:*

Configuration 12 [-]

AND

cpe:2.3:o:mediatek:mt6877_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:mediatek:mt6877:-:*:*:*:*:*:*:*

Configuration 13 [-]

AND

cpe:2.3:o:mediatek:mt6878_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:mediatek:mt6878:-:*:*:*:*:*:*:*

Configuration 14 [-]

AND

cpe:2.3:o:mediatek:mt6879_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:mediatek:mt6879:-:*:*:*:*:*:*:*

Configuration 15 [-]

AND

cpe:2.3:o:mediatek:mt6881_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:mediatek:mt6881:-:*:*:*:*:*:*:*

Configuration 16 [-]

AND

cpe:2.3:o:mediatek:mt6883_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:mediatek:mt6883:-:*:*:*:*:*:*:*

Configuration 17 [-]

AND

cpe:2.3:o:mediatek:mt6885_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:mediatek:mt6885:-:*:*:*:*:*:*:*

Configuration 18 [-]

AND

cpe:2.3:o:mediatek:mt6886_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:mediatek:mt6886:-:*:*:*:*:*:*:*

Configuration 19 [-]

AND

cpe:2.3:o:mediatek:mt6889_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:mediatek:mt6889:-:*:*:*:*:*:*:*

Configuration 20 [-]

AND

cpe:2.3:o:mediatek:mt6893_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:mediatek:mt6893:-:*:*:*:*:*:*:*

Configuration 21 [-]

AND

cpe:2.3:o:mediatek:mt6895_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:mediatek:mt6895:-:*:*:*:*:*:*:*

Configuration 22 [-]

AND

cpe:2.3:o:mediatek:mt6897_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:mediatek:mt6897:-:*:*:*:*:*:*:*

Configuration 23 [-]

AND

cpe:2.3:o:mediatek:mt6899_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:mediatek:mt6899:-:*:*:*:*:*:*:*

Configuration 24 [-]

AND

cpe:2.3:o:mediatek:mt6983_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:mediatek:mt6983:-:*:*:*:*:*:*:*

Configuration 25 [-]

AND

cpe:2.3:o:mediatek:mt6985_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:mediatek:mt6985:-:*:*:*:*:*:*:*

Configuration 26 [-]

AND

cpe:2.3:o:mediatek:mt6989_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:mediatek:mt6989:-:*:*:*:*:*:*:*

Configuration 27 [-]

AND

cpe:2.3:o:mediatek:mt6991_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:mediatek:mt6991:-:*:*:*:*:*:*:*

Configuration 28 [-]

AND

cpe:2.3:o:mediatek:mt6993_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:mediatek:mt6993:-:*:*:*:*:*:*:*

No data.

References

Link	Providers
https://www.mediatek.com/product-security-bulletin/November-2026

History

Thu, 12 Nov 2026 17:00:00 +0000

Type	Values Removed	Values Added
First Time appeared		Mediatek mt6739 Mediatek mt6739 Firmware Mediatek mt6761 Mediatek mt6761 Firmware Mediatek mt6765 Mediatek mt6765 Firmware Mediatek mt6768 Mediatek mt6768 Firmware Mediatek mt6769 Mediatek mt6769 Firmware Mediatek mt6781 Mediatek mt6781 Firmware Mediatek mt6789 Mediatek mt6789 Firmware Mediatek mt6835 Mediatek mt6835 Firmware Mediatek mt6853 Mediatek mt6853 Firmware Mediatek mt6855 Mediatek mt6855 Firmware Mediatek mt6858 Mediatek mt6858 Firmware Mediatek mt6877 Mediatek mt6877 Firmware Mediatek mt6878 Mediatek mt6878 Firmware Mediatek mt6879 Mediatek mt6879 Firmware Mediatek mt6881 Mediatek mt6881 Firmware Mediatek mt6883 Mediatek mt6883 Firmware Mediatek mt6885 Mediatek mt6885 Firmware Mediatek mt6886 Mediatek mt6886 Firmware Mediatek mt6889 Mediatek mt6889 Firmware Mediatek mt6893 Mediatek mt6893 Firmware Mediatek mt6895 Mediatek mt6895 Firmware Mediatek mt6897 Mediatek mt6897 Firmware Mediatek mt6899 Mediatek mt6899 Firmware Mediatek mt6983 Mediatek mt6983 Firmware Mediatek mt6985 Mediatek mt6985 Firmware Mediatek mt6989 Mediatek mt6989 Firmware Mediatek mt6991 Mediatek mt6991 Firmware Mediatek mt6993 Mediatek mt6993 Firmware
CPEs		cpe:2.3:h:mediatek:mt6739:-:::::::* cpe:2.3:h:mediatek:mt6761:-:::::::* cpe:2.3:h:mediatek:mt6765:-:::::::* cpe:2.3:h:mediatek:mt6768:-:::::::* cpe:2.3:h:mediatek:mt6769:-:::::::* cpe:2.3:h:mediatek:mt6781:-:::::::* cpe:2.3:h:mediatek:mt6789:-:::::::* cpe:2.3:h:mediatek:mt6835:-:::::::* cpe:2.3:h:mediatek:mt6853:-:::::::* cpe:2.3:h:mediatek:mt6855:-:::::::* cpe:2.3:h:mediatek:mt6858:-:::::::* cpe:2.3:h:mediatek:mt6877:-:::::::* cpe:2.3:h:mediatek:mt6878:-:::::::* cpe:2.3:h:mediatek:mt6879:-:::::::* cpe:2.3:h:mediatek:mt6881:-:::::::* cpe:2.3:h:mediatek:mt6883:-:::::::* cpe:2.3:h:mediatek:mt6885:-:::::::* cpe:2.3:h:mediatek:mt6886:-:::::::* cpe:2.3:h:mediatek:mt6889:-:::::::* cpe:2.3:h:mediatek:mt6893:-:::::::* cpe:2.3:h:mediatek:mt6895:-:::::::* cpe:2.3:h:mediatek:mt6897:-:::::::* cpe:2.3:h:mediatek:mt6899:-:::::::* cpe:2.3:h:mediatek:mt6983:-:::::::* cpe:2.3:h:mediatek:mt6985:-:::::::* cpe:2.3:h:mediatek:mt6989:-:::::::* cpe:2.3:h:mediatek:mt6991:-:::::::* cpe:2.3:h:mediatek:mt6993:-:::::::* cpe:2.3:o:mediatek:mt6739_firmware:-:::::::* cpe:2.3:o:mediatek:mt6761_firmware:-:::::::* cpe:2.3:o:mediatek:mt6765_firmware:-:::::::* cpe:2.3:o:mediatek:mt6768_firmware:-:::::::* cpe:2.3:o:mediatek:mt6769_firmware:-:::::::* cpe:2.3:o:mediatek:mt6781_firmware:-:::::::* cpe:2.3:o:mediatek:mt6789_firmware:-:::::::* cpe:2.3:o:mediatek:mt6835_firmware:-:::::::* cpe:2.3:o:mediatek:mt6853_firmware:-:::::::* cpe:2.3:o:mediatek:mt6855_firmware:-:::::::* cpe:2.3:o:mediatek:mt6858_firmware:-:::::::* cpe:2.3:o:mediatek:mt6877_firmware:-:::::::* cpe:2.3:o:mediatek:mt6878_firmware:-:::::::* cpe:2.3:o:mediatek:mt6879_firmware:-:::::::* cpe:2.3:o:mediatek:mt6881_firmware:-:::::::* cpe:2.3:o:mediatek:mt6883_firmware:-:::::::* cpe:2.3:o:mediatek:mt6885_firmware:-:::::::* cpe:2.3:o:mediatek:mt6886_firmware:-:::::::* cpe:2.3:o:mediatek:mt6889_firmware:-:::::::* cpe:2.3:o:mediatek:mt6893_firmware:-:::::::* cpe:2.3:o:mediatek:mt6895_firmware:-:::::::* cpe:2.3:o:mediatek:mt6897_firmware:-:::::::* cpe:2.3:o:mediatek:mt6899_firmware:-:::::::* cpe:2.3:o:mediatek:mt6983_firmware:-:::::::* cpe:2.3:o:mediatek:mt6985_firmware:-:::::::* cpe:2.3:o:mediatek:mt6989_firmware:-:::::::* cpe:2.3:o:mediatek:mt6991_firmware:-:::::::* cpe:2.3:o:mediatek:mt6993_firmware:-:::::::*
Vendors & Products		Mediatek mt6739 Mediatek mt6739 Firmware Mediatek mt6761 Mediatek mt6761 Firmware Mediatek mt6765 Mediatek mt6765 Firmware Mediatek mt6768 Mediatek mt6768 Firmware Mediatek mt6769 Mediatek mt6769 Firmware Mediatek mt6781 Mediatek mt6781 Firmware Mediatek mt6789 Mediatek mt6789 Firmware Mediatek mt6835 Mediatek mt6835 Firmware Mediatek mt6853 Mediatek mt6853 Firmware Mediatek mt6855 Mediatek mt6855 Firmware Mediatek mt6858 Mediatek mt6858 Firmware Mediatek mt6877 Mediatek mt6877 Firmware Mediatek mt6878 Mediatek mt6878 Firmware Mediatek mt6879 Mediatek mt6879 Firmware Mediatek mt6881 Mediatek mt6881 Firmware Mediatek mt6883 Mediatek mt6883 Firmware Mediatek mt6885 Mediatek mt6885 Firmware Mediatek mt6886 Mediatek mt6886 Firmware Mediatek mt6889 Mediatek mt6889 Firmware Mediatek mt6893 Mediatek mt6893 Firmware Mediatek mt6895 Mediatek mt6895 Firmware Mediatek mt6897 Mediatek mt6897 Firmware Mediatek mt6899 Mediatek mt6899 Firmware Mediatek mt6983 Mediatek mt6983 Firmware Mediatek mt6985 Mediatek mt6985 Firmware Mediatek mt6989 Mediatek mt6989 Firmware Mediatek mt6991 Mediatek mt6991 Firmware Mediatek mt6993 Mediatek mt6993 Firmware

Mon, 02 Nov 2026 18:30:00 +0000

Type	Values Removed	Values Added
Title	Potential Local Privilege Escalation via Use‑After‑Free in MediaTek Chipset Firmware

Mon, 02 Nov 2026 16:30:00 +0000

Type	Values Removed	Values Added
Metrics		cvssV3_1 `{'score': 6.7, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Mon, 02 Nov 2026 11:30:00 +0000

Type	Values Removed	Values Added
First Time appeared		Mediatek Mediatek mediatek Chipset Mediatek, Inc. Mediatek, Inc. mediatek Chipset
Vendors & Products		Mediatek Mediatek mediatek Chipset Mediatek, Inc. Mediatek, Inc. mediatek Chipset

Mon, 02 Nov 2026 04:00:00 +0000

Type	Values Removed	Values Added
Title		Potential Local Privilege Escalation via Use‑After‑Free in MediaTek Chipset Firmware

Mon, 02 Nov 2026 02:45:00 +0000

Type	Values Removed	Values Added
Description		In afe, there is a possible memory corruption due to use after free. 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: ALPS11431394; Issue ID: MSV-9921.
Weaknesses		CWE-843
References		https://www.mediatek.com/product-security-bulletin/November-2026

MITRE

Status: PUBLISHED

Assigner: MediaTek

Published: 2026-11-02T02:33:48.831Z

Updated: 2026-11-03T04:55:47.077Z

Reserved: 2025-11-03T01:30:59.048Z

Link: CVE-2026-20575

Vulnrichment

Updated: 2026-11-02T15:04:11.671Z

NVD

Status : Analyzed

Published: 2026-11-02T03:17:35.150

Modified: 2026-11-12T16:48:08.610

Link: CVE-2026-20575

Redhat

No data.

Metrics

Attack Vector Local

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

Exploitation none

Automatable no

Technical Impact total

Affected Vendors & Products

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