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CVE-2019-16663

74
FAUCET Score

CVE-2019-16663 describes a critical command injection vulnerability in rConfig version 3.9.2. An authenticated attacker can execute arbitrary system commands by manipulating the 'catCommand' parameter in a GET request to search.crud.php, which is passed directly to the 'exec' function without proper sanitization. This vulnerability carries a high CVSS score of 8.8, indicating a severe risk with low attack complexity and the potential for complete compromise of confidentiality, integrity, and availability. While not listed on CISA's KEV catalog, its high EPSS score and FAUCET Risk Score of 99/100 suggest a significant likelihood of exploitation, further supported by public proof-of-concept exploits and media coverage.

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

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
84.70%
Probability of exploitation in next 30 days
EPSS Percentile
99.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.8470 is in the 100th percentile among its peer group of 17,822 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

drive.google.com / open
ExploitThird Party Advisory
drive.google.com / open
ExploitThird Party Advisory
gist.github.com / mhaskar/e7e454c7cb0dd9a139b0a43691e258a0
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