Vulnerability Report

CVE-2025-20748

Title: Out of bounds write in wlan AP driver

Memory Corruption

Proof Of Concept

PoC Available for CVE-2025-20748

CWE Category CWE-787

Published Date Nov 04, 2025

Modified Date Jan 13, 2026

Exploit Status Available

Score 6.7 CVSS v3.1

Exploit Probability (EPSS)

0.18%

Vulnerability Summary

CVE-2025-20748: 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 if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: WCNCR00432679; Issue ID: MSV-3950.

Impacted Vendors

splunk 1

mediatek 9

Reference Links

https://corp.mediatek.com/product-security-bulletin/November-2025

CVSS v3.1

Source Entity 134c704f-9b21-4f2e-91b3-4a467353bcc0

Severity MEDIUM

6.7

Attack Vector

LOCAL

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

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

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2025-20748 Exploits & PoCs (Proof Of Concept)

Github https://github.com/mellow-hype/mediarekt-2025/blob/main/cve-2025-20748.c

View Code

January 13, 2026 MODIFIED

Vulnerability data updated via NVD.

January 13, 2026 MODIFIED

Vulnerability data updated via NVD.

November 05, 2025 MODIFIED

Vulnerability data or affected products updated.

November 04, 2025 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector LOCAL

Complexity LOW

Privileges N/A

Interaction NONE

CVSS Vector String


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

Affected Stack

No specific products linked.