CVE-2019-20215
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.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 75.1%, higher than 100% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 75.11% probability · 100th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 10 February 2020
- CISA KEV
- Not listed
- Weakness
- CWE-78
- Affected
- dlink/dir-859 firmware
- Source
- cve@mitre.org
EPSS 75.1% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
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=SAP10147Patch, Vendor Advisory
- 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=SAP10147Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.