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CVE-2019-16662

94
FAUCET Score

CVE-2019-16662 is a critical unauthenticated remote code execution vulnerability affecting rConfig 3.9.2. An attacker can execute arbitrary system commands by sending a crafted GET request to ajaxServerSettingsChk.php, exploiting unfiltered input passed to the exec function. With a CVSS score of 9.8, this vulnerability is easily exploitable over the network with no user interaction, leading to complete compromise of confidentiality, integrity, and availability. Public exploit code, including Metasploit modules and Nuclei templates, is readily available, and it has garnered significant community discussion and media coverage, indicating a high likelihood of exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
3.9.2CPE matchmatch criteria
cpe:2.3:a:rconfig:rconfig:3.9.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
97.70%
Probability of exploitation in next 30 days
EPSS Percentile
99.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Metasploit: rConfig install Command Execution · Oct 28, 2019
Nuclei: CVE-2019-16662 · Sep 11, 2020
ExploitDB: EDB-47602 · Nov 8, 2019
This CVE's current EPSS score of 0.9770 is in the 99th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/154999/rConfig-3.9.2-Remote-Code-Execution.html
packetstormsecurity.com / files/155186/rConfig-3.9.2-Command-Injection.html
drive.google.com / file/d/1bTpTn4-alJ8qGCEATLq-oVM6HbhE65iY/view
ExploitThird Party Advisory
drive.google.com / open
ExploitThird Party Advisory
gist.github.com / mhaskar/ceb65fa4ca57c3cdccc1edfe2390902e
ExploitThird Party Advisory
rconfig.com / download
Product
shells.systems / rconfig-v3-9-2-authenticated-and-unauthenticated-rce-cve-2019-16663-and-cve-2019-16662
ExploitTechnical DescriptionThird Party Advisory