CVE-2021-25309

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

The telnet administrator service running on port 650 on Gigaset DX600A v41.00-175 devices does not implement any lockout or throttling functionality. This situation (together with the weak password policy that forces a 4-digit password) allows remote attackers to easily obtain administrative access via brute-force attacks.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-307 CWE-521

Affected software

No affected versions have been published.

Timeline

Published: Mar 2, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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