CVE-2016-20017
Published: January 8, 2024
Official Description
D-Link DSL-2750B devices contain a command injection vulnerability that allows remote, unauthenticated command injection via the login.cgi cli parameter.
CISA KEV Advisory
D-Link DSL-2750B Devices Command Injection Vulnerability
D-Link DSL-2750B devices contain a command injection vulnerability that allows remote, unauthenticated command injection via the login.cgi cli parameter.
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Risk Analysis
This vulnerability in D-Link DSL-2750B devices allows an attacker to inject commands remotely without needing to authenticate. With an EPSS score of 0.93405 and inclusion in CISA's KEV catalog, this is a critical flaw with a high likelihood of exploitation.
Active exploitation of this vulnerability has been observed in the wild. The nature of the flaw, allowing remote and unauthenticated command injection, indicates it is easily exploitable.
Administrators should update D-Link DSL-2750B devices to the latest firmware version. If updates are not available, consider isolating or replacing affected devices.
Technical Analysis
CVE-2016-20017 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2016-20017 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Exploit & PoC Resources
All References (2)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2016-20017 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1