🛡️ CVE-2025-0890 — sbg3300-n000-firmware

🔴 CVSS 9.8 — Critical ✅ No Known Exploit CWE-287 NVD
9.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2025-0890 is classified as CWE-287: Improper Authentication. The identity of the caller is not established correctly, so an attacker can act as another user.

Affected software

CVE-2025-0890 is recorded against 14 packages.

  • sbg3300-n000-firmware
  • sbg3300-nb00-firmware
  • sbg3500-n000-firmware
  • sbg3500-nb00-firmware
  • vmg1312-b10a-firmware
  • vmg1312-b10b-firmware
  • vmg1312-b10e-firmware
  • vmg3312-b10a-firmware
  • vmg3313-b10a-firmware
  • vmg3926-b10b-firmware
  • vmg4325-b10a-firmware
  • vmg4380-b10a-firmware
  • vmg8324-b10a-firmware
  • vmg8924-b10a-firmware

Timeline and source

Published on 4 February 2025 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

www.zyxel.com

Details

Severity CRITICAL
CVSS Score 9.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-287
Public Exploit ✅ No
Source NVD
Published 2025-02-04
Updated 2026-08-11
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
sbg3300-n000-firmware
sbg3300-nb00-firmware
sbg3500-n000-firmware
sbg3500-nb00-firmware
vmg1312-b10a-firmware
vmg1312-b10b-firmware
vmg1312-b10e-firmware
vmg3312-b10a-firmware
vmg3313-b10a-firmware
vmg3926-b10b-firmware
vmg4325-b10a-firmware
vmg4380-b10a-firmware
vmg8324-b10a-firmware
vmg8924-b10a-firmware

Similar Threats

Exploit Protection

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