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Vulnerabilities

Vulnerability · CVE-2019-16662

rConfig rConfig Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Published Dec 24, 2019 · catalog updated Dec 24, 2019 · rConfig rConfig

Patch now

CVE-2019-16662 is in the CISA known-exploited catalog. Confirm rConfig rConfig against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
Severity
Unknown—
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
97.70%
Remediation
Remediation guidance
Affected products
vendor rConfig rConfig

An issue was discovered in rConfig 3.9.2. An attacker can directly execute system commands by sending a GET request to ajaxServerSettingsChk.php because the rootUname parameter is passed to the exec function without filtering, which can lead to command execution. Initial-access exploit intelligence.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor rConfig rConfigversion unspecified

How to fix CVE-2019-16662

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2019-16662 is in the CISA known-exploited catalog. Confirm rConfig rConfig against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Affected version ranges are not on this record. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

What should an analyst verify?

No weakness class is stored. EPSS 97.70%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Dec 24, 2019 · VulnCheck KEV

    Detected

    An issue was discovered in rConfig 3.9.2. An attacker can directly execute system commands by sending a GET request to ajaxServerSettingsChk.php because the rootUname parameter is passed to the exec function without filtering, which can lead to command execution. Initial-access exploit intelligence.

  2. Dec 24, 2019 · CISA KEV

    Known exploited

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Sources

  • CVE.orgVulnerability recordCVE-2019-16662

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2019-16662

    30-day exploitation probability 97.7%

    first.org
  • VulnCheck KEVConfirmed exploitationCVE-2019-16662

    An issue was discovered in rConfig 3.9.2. An attacker can directly execute system commands by sending a GET request to ajaxServerSettingsChk.php because the rootUname parameter is passed to the exec function without filtering, which can lead to command execution.

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.