CVE-2025-0890

**UNSUPPORTED WHEN ASSIGNED**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.

Affected

Zyxel · VMG4325-B10A firmware

CVSS v3.1 ZYXEL

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

EPSS

13.65% chance of exploitation in the next 30 days, 96th percentile

Published

2025-02-04

Updated

2025-02-12

Proof-of-concept exploits (1)

• Danyw24/zyxel-p870hn-hardware-hacking0★ · 2026-08-13

Security advisories

• https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-c…

References

• CVE Record
• NVD entry

Related

• CVE-2004-1561
• CVE-2016-5195
• CVE-2023-45866
• CVE-2024-21306
• CVE-2024-40891
• CVE-2025-68143