CVE-2026-20494

MEDIUM CVSS 3.1: 5.5 EPSS 0.10%
Updated Aug 19, 2026
Mediatek
Parameter Value
CVSS 5.5 (MEDIUM)
Type CWE-125 (Out-of-bounds Read)
Vendor Mediatek
Public PoC No

In wifi, 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: ALPS10960006 / BORA00155314, BORA00155001, BORA00154907; Issue ID: MSV-7570.

Attack Parameters

Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption

CVSS Vector v3.1

Weakness Type (CWE)

Vulnerable Products 6

Configuration From (including) Up to (excluding)
Mediatek Mt6890_Firmware
cpe:2.3:o:mediatek:mt6890_firmware:-:*:*:*:*:*:*:*
Mediatek Mt6890
cpe:2.3:h:mediatek:mt6890:-:*:*:*:*:*:*:*
Mediatek Mt6988_Firmware
cpe:2.3:o:mediatek:mt6988_firmware:-:*:*:*:*:*:*:*
Mediatek Mt6988
cpe:2.3:h:mediatek:mt6988:-:*:*:*:*:*:*:*
Mediatek Mt6990_Firmware
cpe:2.3:o:mediatek:mt6990_firmware:-:*:*:*:*:*:*:*
Mediatek Mt6990
cpe:2.3:h:mediatek:mt6990:-:*:*:*:*:*:*:*