CVE-2016-20017
D-Link DSL-2750B Devices Command Injection Vulnerability
D-Link DSL-2750B Devices
D-Link DSL-2750B devices before 1.05 allow remote unauthenticated command injection via the login.cgi cli parameter, as exploited in the wild in 2016 through 2022.
Exploitation status
CISA Known Exploited Vulnerabilities
Listed by CISA on 8 January 2024. US federal agencies were required to remediate it by 29 January 2024.
EPSS — exploitation probability
FIRST puts the probability of exploitation activity in the next 30 days at 65.8%, which is higher than 99.3% of all scored vulnerabilities. EPSS is a forecast of activity, not a measure of severity, and it is rescored daily.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Frequently asked questions
Is CVE-2016-20017 being exploited by ransomware groups?
No ransomware group in this database is currently recorded as exploiting CVE-2016-20017.
What does CVE-2016-20017 affect?
CVE-2016-20017 affects D-Link DSL-2750B Devices. D-Link DSL-2750B devices before 1.05 allow remote unauthenticated command injection via the login.cgi cli parameter, as exploited in the wild in 2016 through 2022.
How severe is CVE-2016-20017?
CVE-2016-20017 is rated CRITICAL with a CVSS base score of 9.8. EPSS puts the probability of exploitation in the next 30 days at 65.8%, higher than 99.3% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 29 January 2024.
How should organisations respond to CVE-2016-20017?
Apply the vendor patch for D-Link DSL-2750B Devices as the first priority, and treat any internet-facing instance as the most urgent. Because this vulnerability is associated with ransomware activity, also review whether the affected systems were reachable before patching, rather than assuming that patching alone closes the incident.