CVE-2025-20681

Published Jul 8, 2025 CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed

Description

In wlan AP driver, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00416936; Issue ID: MSV-3446.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

MediaTek, Inc.

MT6890, MT7615, MT7622, MT7663, MT7915

affected

Version	Status	Constraints
`SDK release 5.1.0.0 and before / openWRT 19.07, 21.02`	affected	—

Configuration 1 [-]

AND

OR	cpe:2.3:a:mediatek:software_development_kit::::::::
	cpe:2.3:o:openwrt:openwrt:19.07.0:-::::::
	cpe:2.3:o:openwrt:openwrt:21.02.0:-::::::

OR	cpe:2.3:h:mediatek:mt6890:-:::::::*
	cpe:2.3:h:mediatek:mt7615:-:::::::*
	cpe:2.3:h:mediatek:mt7622:-:::::::*
	cpe:2.3:h:mediatek:mt7663:-:::::::*
	cpe:2.3:h:mediatek:mt7915:-:::::::*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

Source	ID	Title
EUVD	EUVD-2025-20371	In wlan AP driver, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00416936; Issue ID: MSV-3446.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

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.

Exploit prediction score: < 1% (0.635% probability within 30 days)

Exploitation none

Automatable yes

Technical Impact total

References

Link	Providers
https://corp.mediatek.com/product-security-bulletin/July-2025

History

Jul 14, 2025 1:45 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics	epss `{'score': 0.00078}`	epss `{'score': 0.00103}`

Jul 12, 2025 1:45 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics	epss `{'score': 0.00075}`	epss `{'score': 0.00078}`

Jul 9, 2025 5:45 PM First appearance in the feed. Affected versions updated. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Mediatek Mediatek mt6890 Mediatek mt7615 Mediatek mt7622 Mediatek mt7663 Mediatek mt7915 Mediatek software Development Kit Openwrt Openwrt openwrt
CPEs		cpe:2.3:a:mediatek:software_development_kit:::::::: cpe:2.3:h:mediatek:mt6890:-:::::::* cpe:2.3:h:mediatek:mt7615:-:::::::* cpe:2.3:h:mediatek:mt7622:-:::::::* cpe:2.3:h:mediatek:mt7663:-:::::::* cpe:2.3:h:mediatek:mt7915:-:::::::* cpe:2.3:o:openwrt:openwrt:19.07.0:-:::::: cpe:2.3:o:openwrt:openwrt:21.02.0:-::::::
Vendors & Products		Mediatek Mediatek mt6890 Mediatek mt7615 Mediatek mt7622 Mediatek mt7663 Mediatek mt7915 Mediatek software Development Kit Openwrt Openwrt openwrt

Jul 8, 2025 2:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		cvssV3_1 `{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}` ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Jul 8, 2025 2:30 AM Description updated. Weaknesses updated. Added references View changes

Type	Values Removed	Values Added
Description		In wlan AP driver, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00416936; Issue ID: MSV-3446.
Weaknesses		CWE-787
References		https://corp.mediatek.com/product-security-bulletin/July-2025