CVE-2026-20576

Published Nov 2, 2026 CVSS 3.1 · 6.7 Medium EPSS < 1% KEV · Not listed
Description
In afe, there is a possible out of bounds write 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: ALPS11431385; Issue ID: MSV-9920.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Mediatek mt6789
Mediatek mt6789 Firmware
Mediatek mt6835
Mediatek mt6835 Firmware
Mediatek mt6855
Mediatek mt6855 Firmware
Mediatek mt6858
Mediatek mt6858 Firmware
Mediatek mt6877
Mediatek mt6877 Firmware
Mediatek mt6885
Mediatek mt6885 Firmware
Mediatek mt6886
Mediatek mt6886 Firmware
Mediatek mt6895
Mediatek mt6895 Firmware
Mediatek mt6897
Mediatek mt6897 Firmware
Mediatek mt6985
Mediatek mt6985 Firmware
Mediatek mt6988
Mediatek mt6988 Firmware
Mediatek mt6989
Mediatek mt6989 Firmware
Mediatek mt6991
Mediatek mt6991 Firmware
Mediatek mt6993
Mediatek mt6993 Firmware
CPEs cpe:2.3:h:mediatek:mt6789:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6835:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6855:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6858:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6877:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6885:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6886:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6895:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6897:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6985:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6988:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6989:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6991:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6993:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt6789_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt6835_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:mt6885_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt6886_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt6895_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt6897_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt6985_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt6988_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 mt6789
Mediatek mt6789 Firmware
Mediatek mt6835
Mediatek mt6835 Firmware
Mediatek mt6855
Mediatek mt6855 Firmware
Mediatek mt6858
Mediatek mt6858 Firmware
Mediatek mt6877
Mediatek mt6877 Firmware
Mediatek mt6885
Mediatek mt6885 Firmware
Mediatek mt6886
Mediatek mt6886 Firmware
Mediatek mt6895
Mediatek mt6895 Firmware
Mediatek mt6897
Mediatek mt6897 Firmware
Mediatek mt6985
Mediatek mt6985 Firmware
Mediatek mt6988
Mediatek mt6988 Firmware
Mediatek mt6989
Mediatek mt6989 Firmware
Mediatek mt6991
Mediatek mt6991 Firmware
Mediatek mt6993
Mediatek mt6993 Firmware
Type Values Removed Values Added
Title Out‑of‑Bounds Write Causing Privilege Escalation on MediaTek Chipsets
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'}

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
Type Values Removed Values Added
Title Out‑of‑Bounds Write Causing Privilege Escalation on MediaTek Chipsets
Type Values Removed Values Added
Description In afe, there is a possible out of bounds write 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: ALPS11431385; Issue ID: MSV-9920.
Weaknesses CWE-191
References