SB2025040837 - Multiple WLAN driver vulnerabilities in DrayTek routers

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Main Vulnerability Database SB2025040837

SB2025040837 - Multiple WLAN driver vulnerabilities in DrayTek routers

Published: April 8, 2025

Security Bulletin ID SB2025040837
CSH Severity
High
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 33% Low 67%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 vulnerabilities.


1) Out-of-bounds write (CVE-ID: CVE-2025-20631)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local application to execute arbitrary code.

The vulnerability exists due to an incorrect bounds check within wlan. A local application can execute arbitrary code.


2) Out-of-bounds write (CVE-ID: CVE-2025-20633)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber


The vulnerability allows a remote attacker to execute arbitrary code.

The vulnerability exists due to an incorrect bounds check within wlan. A remote attacker can trick the victim to open a specially crafted file and execute arbitrary code.


3) Out-of-bounds write (CVE-ID: CVE-2025-20632)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local application to execute arbitrary code.

The vulnerability exists due to an incorrect bounds check within wlan. A local application can execute arbitrary code.


Remediation

Install update from vendor's website.

References