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CVE-2019-20216

31
FAUCET Score

CVE-2019-20216 is a critical OS command injection vulnerability affecting D-Link DIR-859 routers running firmware versions 1.05 and 1.06B01 Beta01. Attackers can exploit this by sending a crafted M-SEARCH request to the ssdpcgi() function, leveraging mishandling of the REMOTE_PORT value to inject arbitrary commands. This vulnerability carries a CVSS score of 9.8 (Critical) due to its network-based attack vector, low complexity, and complete compromise of confidentiality, integrity, and availability. While no public exploit code or active exploitation has been observed, and community discussion is minimal, the high FAUCET Risk Score of 85/100 indicates significant potential risk.

Impacted Technologies

VendorProductVersion(s)CPE
1.05CPE matchmatch criteria
cpe:2.3:o:dlink:dir-859_firmware:1.05:*:*:*:*:*:*:*
1.06b01CPE matchmatch criteria
cpe:2.3:o:dlink:dir-859_firmware:1.06b01:beta01:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/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
3.1

Exploit Intelligence

EPSS Score
3.67%
Probability of exploitation in next 30 days
EPSS Percentile
88.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0367 is in the 81st percentile among its peer group of 36,833 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

No media coverage found for this CVE.

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

medium.com / %40s1kr10s/d-link-dir-859-rce-unauthenticated-cve-2019-20216-cve-2019-20217-en-6bca043500ae
medium.com / %40s1kr10s/d-link-dir-859-rce-unauthenticated-cve-2019-20216-cve-2019-20217-es-e11ca6168d35
supportannouncement.us.dlink.com / announcement/publication.aspx
PatchVendor Advisory