CVE-2019-17621

critical-risk
Published 2019-12-30

The UPnP endpoint URL /gena.cgi in the D-Link DIR-859 Wi-Fi router 1.05 and 1.06B01 Beta01 allows an Unauthenticated remote attacker to execute system commands as root, by sending a specially crafted HTTP SUBSCRIBE request to the UPnP service when connecting to the local network.

Do I need to act?

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93.0% chance of exploitation in next 30 days
EPSS score — higher than 7% of all CVEs
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CISA KEV: actively exploited in the wild
On the Known Exploited Vulnerabilities catalog — federal agencies must patch
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Vendors

78
/ 100
critical-risk
Severity 32/34 · Critical
Exploitability 27/34 · High
Exposure 19/34 · Moderate