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PatchSiren cyber security CVE debrief

CVE-2020-10221 rConfig CVE debrief

CVE-2020-10221 is an OS command injection vulnerability in rConfig. CISA lists it in the Known Exploited Vulnerabilities (KEV) catalog, which means there is evidence of active exploitation and the issue should be treated as a defensive priority. The supplied corpus does not include affected version details or a vendor advisory, so remediation should follow vendor update guidance and be paired with exposure review and compromise checks.

Vendor
rConfig
Product
rConfig
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2021-11-03
Original CVE updated
2021-11-03
Advisory published
2021-11-03
Advisory updated
2021-11-03

Who should care

Organizations running rConfig, especially internet-facing deployments and teams responsible for configuration management, vulnerability management, and incident response, should prioritize this CVE because it is in CISA’s KEV catalog.

Technical summary

The vulnerability is described at a high level as an OS command injection issue in rConfig. Command injection flaws can allow attacker-controlled operating system commands to be executed by the application. The corpus provided here does not identify specific vulnerable versions, prerequisites, or exploit conditions, but CISA’s KEV listing indicates the issue has been observed in the wild.

Defensive priority

High. CISA KEV inclusion elevates this from a routine software flaw to an actively exploited weakness that should be remediated promptly.

Recommended defensive actions

  • Apply updates per vendor instructions as directed by CISA.
  • Inventory all rConfig deployments and identify whether any instances are exposed to untrusted networks.
  • Prioritize remediation on internet-facing systems and any system that processes untrusted input through rConfig.
  • Review logs and alerts for signs of abnormal command execution, unexpected process activity, or suspicious administrator actions.
  • Validate that backups, recovery procedures, and incident response steps are ready before and after patching.
  • If immediate patching is not possible, reduce exposure by restricting access to the application and surrounding management interfaces until remediation is complete.

Evidence notes

Source corpus evidence is limited to CISA KEV metadata and official record links. CISA’s KEV entry names the vulnerability as ‘rConfig OS Command Injection Vulnerability,’ marks it as exploited, and provides the remediation note ‘Apply updates per vendor instructions.’ The corpus does not include a vendor advisory, affected version range, or exploitation details beyond KEV status.

Sources and references

Verified primary and authoritative sources

  • CVE-2020-10221 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2020-10221

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2020-10221 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2020-10221

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

  • CISA Known Exploited Vulnerabilities catalog

    Publisher, destination, and source semantics verified

    URL: https://www.cisa.gov/known-exploited-vulnerabilities-catalog

    Cybersecurity and Infrastructure Security Agency - Official CISA catalog of vulnerabilities known to be exploited in the wild.

Supplemental references

  • Source item URL

    Unverified legacy reference

    URL: https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json

    cisa_kev

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.