CVE-2019-16057
Published: April 15, 2022
Official Description
The login_mgr.cgi script in D-Link DNS-320 is vulnerable to remote code execution.
CISA KEV Advisory
D-Link DNS-320 Remote Code Execution Vulnerability
The login_mgr.cgi script in D-Link DNS-320 is vulnerable to remote code execution.
The impacted product is end-of-life and should be disconnected if still in use.
Risk Analysis
A remote code execution vulnerability exists in the login_mgr.cgi script of D-Link DNS-320 devices. This flaw allows an attacker to execute arbitrary code on the affected device. The high EPSS score of 0.93750 and its inclusion in the KEV catalog indicate a high likelihood of exploitation and confirmed active attacks.
This vulnerability has been actively exploited in the wild and is listed in CISA's Known Exploited Vulnerabilities catalog. The flaw is remotely exploitable via the login_mgr.cgi script.
Administrators should apply all available firmware updates for D-Link DNS-320 devices. Restrict network access to the administrative interface and use strong, unique passwords.
Technical Analysis
CVE-2019-16057 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-2019-16057 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 (1)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2019-16057 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