The telnet administrator service running on port 650 on Gigaset DX600A v41.00-175 devices…
Priority MEDIUM 45CWE-307Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-307.
Summary
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.
Why it matters now
EPSS 0.01397 72nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-25309
- 2026-10-03 Alias added: GHSA-9445-66j5-fhvj
More Gigaset Dx600a Firmware vulnerabilities
- TI-2021-07547 A buffer overflow vulnerability in the AT command interface of Gigaset DX600A v41.00-175… CVSS 3.1HIGH 7.5
Sources
- CVE-2021-25309 · CVE Program
- CVE-2021-25309 · NVD
- FIRST EPSS
- GHSA-9445-66j5-fhvj · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences