CVE-2025-20646

Mediatek Software Development Kit vulnerability

9.8 CRITICALEPSS 0.88%

Published3 Mar 2025

Description

In wlan AP FW, there is a possible out of bounds write due to improper input validation. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00389074; Issue ID: MSV-1803.

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Affected products

Mediatek Software Development Kit< 7.6.7.2

Remediation

Fixed in

Mediatek Software Development Kit≥ 7.6.7.2

Frequently asked

Is CVE-2025-20646 being actively exploited?

CVE-2025-20646 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.88%.

How severe is CVE-2025-20646?

CVE-2025-20646 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.88% probability of exploitation.

Which products are affected by CVE-2025-20646?

Affected products include Mediatek Software Development Kit.

How do I fix CVE-2025-20646?

Upgrade affected software to a fixed version, for example Mediatek Software Development Kit 7.6.7.2 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-20646 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.