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

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CVE-2025-0890

Severity CVSS v4.0:
Pending analysis
Type:
CWE-287 Authentication Issues
Publication date:
04/02/2025
Last modified:
15/12/2025

Description

**UNSUPPORTED WHEN ASSIGNED**<br /> Insecure default credentials for the Telnet function in the legacy DSL CPE Zyxel VMG4325-B10A firmware version 1.00(AAFR.4)C0_20170615 could allow an attacker to log in to the management interface if the administrators have the option to change the default credentials but fail to do so.

Impact

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

Base Score: 9.80 CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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

Base Score 3.x
9.80
Severity 3.x
CRITICAL

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:zyxel:vmg4325-b10a_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:vmg4325-b10a:-:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:sbg3500-n000_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:sbg3500-n000:-:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:vmg1312-b10a_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:vmg1312-b10a:-:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:vmg1312-b10b_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:vmg1312-b10b:-:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:vmg1312-b10e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:vmg1312-b10e:-:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:vmg3312-b10a_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:vmg3312-b10a:-:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:vmg3313-b10a_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:vmg3313-b10a:-:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:vmg3926-b10b_firmware:-:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools