CVE-2025-11848

Published: Feb 24, 2026

Modified: Feb 24, 2026

PUBLISHED

CVSS v3.1

4.9

MEDIUM

Description

A null pointer dereference vulnerability in the Wake-on-LAN CGI program of the Zyxel VMG3625-T50B firmware version through 5.50(ABPM.9.6)C0 and the Zyxel WX3100-T0 firmware versions through 5.50(ABVL.4.8)C0 could allow an authenticated attacker with administrator privileges to trigger a denial-of-service (DoS) condition by sending a crafted HTTP request.

Vendor	Product	Versions
Zyxel	VMG3625-T50B firmware	affected `<= 5.50(ABPM.9.6)C0`
Zyxel	WX3100-T0 firmware	affected `<= 5.50(ABVL.4.8)C0`

Weaknesses (CWE)

CWE-476

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-null-pointer-dereference-and-command-injection-vulnerabilities-in-certain-4g-lte-5g-nr-cpe-dsl-ethernet-cpe-fiber-onts-security-routers-and-wireless-extenders-02-24-2026

vendor-advisory

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CVE-2025-11848

Description

Affected Products

Weaknesses (CWE)

CVSS v3.1 Details

References