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CVE-2018-6213

31
FAUCET Score

CVE-2018-6213 describes a critical hardcoded administrator password vulnerability in specific ISP-customized firmware versions of D-Link DIR-620 routers. This flaw allows unauthenticated remote attackers to gain full control over affected devices due to a static "anonymous" password for the admin account. With a CVSS score of 9.8 (CRITICAL), it presents a severe risk of complete compromise (confidentiality, integrity, availability). While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion and media coverage, indicating awareness of its potential impact.

Impacted Technologies

VendorProductVersion(s)CPE
1.0.3CPE matchmatch criteria
cpe:2.3:o:d-link:dir-620_firmware:1.0.3:*:*:*:*:*:*:*
1.0.37CPE matchmatch criteria
cpe:2.3:o:d-link:dir-620_firmware:1.0.37:*:*:*:*:*:*:*
1.3.1CPE matchmatch criteria
cpe:2.3:o:d-link:dir-620_firmware:1.3.1:*:*:*:*:*:*:*
1.3.3CPE matchmatch criteria
cpe:2.3:o:d-link:dir-620_firmware:1.3.3:*:*:*:*:*:*:*
1.3.7CPE matchmatch criteria
cpe:2.3:o:d-link:dir-620_firmware:1.3.7:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.36%
Probability of exploitation in next 30 days
EPSS Percentile
87.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0336 is in the 80th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

securelist.com / backdoors-in-d-links-backyard/85530
ExploitThird Party Advisory
securityaffairs.co / wordpress/72839/hacking/d-link-dir-620-flaws.html
Third Party Advisory
bleepingcomputer.com / news/security/backdoor-account-found-in-d-link-dir-620-routers
Third Party Advisory
securitynewspaper.com / 2018/05/25/d-link-dir-620-routers-critical-vulnerabilities
Third Party Advisory