CVE-2019-20215

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 75.1% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2020-01-29 · updated 2026-06-17
Weakness: CWE-78

Description

D-Link DIR-859 1.05 and 1.06B01 Beta01 devices allow remote attackers to execute arbitrary OS commands via a urn: to the M-SEARCH method in ssdpcgi() in /htdocs/cgibin, because HTTP_ST 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.

Affected products

D-Link DIR-859: 1.05, 1.06b01-beta01

References

http://packetstormsecurity.com/files/156250/D-Link-ssdpcgi-Unauthenticated-Remote-Command-Execution.html
https://medium.com/%40s1kr10s/d-link-dir-859-unauthenticated-rce-in-ssdpcgi-http-st-cve-2019-20215-en-2e799acb8a73
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10147
http://packetstormsecurity.com/files/156250/D-Link-ssdpcgi-Unauthenticated-Remote-Command-Execution.html
https://medium.com/%40s1kr10s/d-link-dir-859-unauthenticated-rce-in-ssdpcgi-http-st-cve-2019-20215-en-2e799acb8a73
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10147

Get alerted when CVE-2019-20215 or the next vulnerability affects your stack