Is CVE-2025-20709 actively exploited?

CVE-2025-20709 has no public evidence of in-the-wild exploitation as of 2025-10-15.

What is the CVSS score for CVE-2025-20709?

CVE-2025-20709 has a CVSS score of 8.8 (HIGH severity). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2025-20709?

Patch guidance is available from mediatek security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2025-20709.

Fix CVE-2025-20709 - HIGH mediatek software development kit

Q: Which products are affected by CVE-2025-20709?

3 products: mediatek software development kit, openwrt openwrt, openwrt openwrt.

Description

In wlan AP driver, there is a possible out of bounds write due to an incorrect bounds check. This could lead to remote (proximal/adjacent) escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00415809; Issue ID: MSV-3405.

CVSS Metrics

Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector: adjacent network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-120

Metadata

Primary Vendor: MEDIATEK
Published: 10/14/2025
Last Modified: 10/15/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

mediatek : software_development_kitopenwrt : openwrtopenwrt : openwrt

Remediation Guidance

Executive Summary

Cite this page

CVE-2025-20709. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2025-20709

View on NIST NVD

CVE-2025-20709 vulnerability