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PatchSiren cyber security CVE debrief

CVE-2017-9822 DotNetNuke (DNN) CVE debrief

CVE-2017-9822 is a DotNetNuke (DNN) remote code execution vulnerability that CISA has added to the Known Exploited Vulnerabilities catalog. The KEV entry also marks it as associated with known ransomware campaign use, which makes it a priority for defensive patching and exposure review. CISA’s required action is to apply updates per vendor instructions.

Vendor
DotNetNuke (DNN)
Product
DotNetNuke (DNN)
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 DotNetNuke (DNN), especially administrators responsible for patching, internet-facing web applications, and incident response teams tracking known exploited vulnerabilities.

Technical summary

The supplied official metadata identifies CVE-2017-9822 as a remote code execution vulnerability in DotNetNuke (DNN). CISA’s KEV entry indicates the issue has been exploited and records known ransomware campaign use. No affected version range, attack preconditions, or CVSS score were supplied in the source corpus.

Defensive priority

High. CISA has placed this CVE in the Known Exploited Vulnerabilities catalog, which indicates confirmed exploitation and warrants prompt remediation.

Recommended defensive actions

  • Identify all DotNetNuke (DNN) deployments in your environment.
  • Apply vendor updates per the CISA KEV required action and vendor instructions.
  • Prioritize remediation for any internet-facing or externally reachable DNN instances.
  • Verify remediation by confirming the updated product version is deployed everywhere it should be.
  • Review security monitoring and logs for signs of suspicious activity around DNN systems.
  • Track the CISA KEV catalog and the NVD/CVE records for any updated guidance.

Evidence notes

This debrief is based on the supplied CISA KEV source item and official record links only. The source metadata states: vendorProject DotNetNuke (DNN), product DotNetNuke (DNN), vulnerabilityName DotNetNuke (DNN) Remote Code Execution Vulnerability, requiredAction "Apply updates per vendor instructions.", and knownRansomwareCampaignUse "Known." The source notes reference the NVD record for CVE-2017-9822.

Sources and references

Verified primary and authoritative sources

  • CVE-2017-9822 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2017-9822

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

  • CVE-2017-9822 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2017-9822

    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.