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CVE-2019-16920 is an unauthenticated command-injection vulnerability in the PingTest CGI interface of multiple D-Link network devices. Attacker-controlled input submitted to the interface can cause arbitrary operating-system commands to execute with root privileges, allowing full device compromise. Affected models include DIR-655C, DIR-866L, DIR-652, DHP-1565, DIR-855L, DAP-1533, DIR-862L, DIR-615, DIR-835, and DIR-825. The vulnerability has been exploited by APT41 and used for propagation by Gafgyt_tor and Mirai variants.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains two Python exploit scripts (CVE-2019-16920.py and CVE-2019-16920-MassPwn3r.py) targeting CVE-2019-16920, a remote unauthenticated command injection vulnerability in multiple D-Link router models. The exploit works by sending a crafted POST request to the /apply_sec.cgi endpoint, abusing the 'ping_test' action to inject and execute arbitrary system commands. The single-target script (CVE-2019-16920.py) takes an IP, port, and command as arguments, while the mass exploitation script (CVE-2019-16920-MassPwn3r.py) reads a list of IPs from bots.txt and attempts to exploit each in parallel using threads. The README.md provides usage instructions, a list of affected models, and a brief vulnerability description. The bots.txt file contains a sample list of target IP addresses. The exploit is operational, providing remote code execution on vulnerable devices without authentication.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
10 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A command injection vulnerability in multiple D-Link products, exploited by RondoDox.
A remote code execution vulnerability in D-Link products that Gafgyt_tor uses as a propagation vector to execute a downloader and install the botnet payload.
A vulnerability listed as one of the infection exploits used by Mirai variant four to infect additional vulnerable hosts.
An unauthenticated remote code execution vulnerability affecting multiple D-Link products, exploited by APT41 for initial access.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.