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Vulnerability record · CVE-2018-6210 · published 19 June 2018

CVE-2018-6210: Dlink dir-620 firmware hard-coded credentials vulnerability

Dlink · Dir 620 Firmware

D-Link DIR-620 devices, with a certain Rostelekom variant of firmware 1.0.37, have a hardcoded rostel account, which makes it easier for remote attackers to obtain access via a TELNET session.

9.8 CVSS 3.1 Critical EPSS 3.1% · top 12.9% CWE-798 · Hard-coded credentials
9.8CVSS 3.1 base score, v2 10.0
3.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

D-Link DIR-620 devices, with a certain Rostelekom variant of firmware 1.0.37, have a hardcoded rostel account, which makes it easier for remote attackers to obtain access via a TELNET session.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://securelist.com/backdoors-in-d-links-backyard/85530/ Third Party Advisory
https://securelist.com/backdoors-in-d-links-backyard/85530/ Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2018-6210), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.