Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2025-11845

Severity CVSS v4.0:
Pending analysis
Type:
CWE-476 NULL Pointer Dereference
Publication date:
24/02/2026
Last modified:
25/02/2026

Description

A null pointer dereference vulnerability in the certificate downloader CGI program of the Zyxel VMG3625-T50B firmware versions 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.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 4.90 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
4.90
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:zyxel:lte3301-plus_firmware:*:*:*:*:*:*:*:* 1.00\(abqu.9\)c0 (excluding)
cpe:2.3:h:zyxel:lte3301-plus:-:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:nebula_fwa505_firmware:*:*:*:*:*:*:*:* 1.60\(acko.2\)v0 (excluding)
cpe:2.3:h:zyxel:nebula_fwa505:-:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:nebula_fwa510_firmware:*:*:*:*:*:*:*:* 1.60\(acgd.0\)c0 (excluding)
cpe:2.3:h:zyxel:nebula_fwa510:-:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:nebula_fwa515_firmware:*:*:*:*:*:*:*:* 1.60\(acpz.0\)v0 (excluding)
cpe:2.3:h:zyxel:nebula_fwa515:-:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:nebula_fwa710_firmware:*:*:*:*:*:*:*:* 1.60\(acgc.1\)v0 (excluding)
cpe:2.3:h:zyxel:nebula_fwa710:-:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:ee5301-00_firmware:*:*:*:*:*:*:*:* 5.63\(acld.2.1\)c0 (excluding)
cpe:2.3:h:zyxel:ee5301-00:-:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:ee3301-00_firmware:*:*:*:*:*:*:*:* 5.63\(acmu.2.1\)c0 (excluding)
cpe:2.3:h:zyxel:ee3301-00:-:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:dx5401-b1_firmware:*:*:*:*:*:*:*:* 5.17\(abyo.7.1\)c0 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools