CVE-2019-20216

Name: CVE-2019-20216
Creator: NVD / NIST
Published: 2020-01-29T03:15:14.19+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 3.67%

Last modified Jun 17, 2026

CVE-2019-20216 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. D-Link DIR-859 1.05 and 1.06B01 Beta01 devices allow remote attackers to execute arbitrary OS commands via the urn: to the M-SEARCH method in ssdpcgi() in /htdocs/cgibin, because REMOTE_PORT is mishandled. The value of the urn: service/device is checked with the strstr function, which allows an attacker to concatenate arbitrary commands separated by shell metacharacters.. EPSS estimates a 3.67% chance of exploitation in the next 30 days.

Description

D-Link DIR-859 1.05 and 1.06B01 Beta01 devices allow remote attackers to execute arbitrary OS commands via the urn: to the M-SEARCH method in ssdpcgi() in /htdocs/cgibin, because REMOTE_PORT is mishandled. The value of the urn: service/device is checked with the strstr function, which allows an attacker to concatenate arbitrary commands separated by shell metacharacters.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

3.67%

88.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-78

Affected Software

Vendor	Product	Versions	Update
Dlink	Dir-859 Firmware	1.05	—
Dlink	Dir-859 Firmware	1.06b01	Beta01

References

Timeline

Published: Jan 29, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-20216?

How severe is CVE-2019-20216?

CVE-2019-20216 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 3.67% probability of exploitation in the next 30 days.

How do I fix CVE-2019-20216?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-20216?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST