Vulnerability record

CVE-2019-17621

D-Link DIR-859 Router Command Execution Vulnerability

Severity: CriticalExploitation: Exploitation confirmedCISA KEV
What should I do?

This vulnerability is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it. If you run DIR-859 Router, fix it now.

CISA required action: Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.

US federal civilian agencies must remediate by Jul 20, 2023.

Patch status

Official fix available since

Apply the vendor's update to every affected system. Check the fixed-in versions below where known.

Basis: NVD patch reference

Description

The UPnP endpoint URL /gena.cgi in the D-Link DIR-859 Wi-Fi router 1.05 and 1.06B01 Beta01 allows an Unauthenticated remote attacker to execute system commands as root, by sending a specially crafted HTTP SUBSCRIBE request to the UPnP service when connecting to the local network.

Source: NIST National Vulnerability Database. Official vulnerability data, reproduced as published.

Affected products

Products affected by this vulnerability, with versions and the source of each entry
ProductVendorSource
DIR-859 RouterD-LinkKEV

Sources: KEV = CISA Known Exploited Vulnerabilities catalog. Version details have not been published yet.

Intelligence timeline

Developments from the last 30 days, newest first.

  1. CVSS scoredUpdateKEV

    CVE-2019-17621 scored CVSS 9.8: D-Link DIR-859 Router, D-Link DIR-859 Router Command Execution Vulnerability

    CISA lists this as exploited in the wild. Unpatched DIR-859 Router systems are exposed to active attacks now.

    Basis: NIST National Vulnerability Database

  2. Patch releasedUpdateKEV

    Patch released for CVE-2019-17621: D-Link DIR-859 Router, D-Link DIR-859 Router Command Execution Vulnerability

    An official fix is now available for D-Link DIR-859 Router. This vulnerability is being exploited, so apply it promptly.

    Basis: NVD patch reference

1 earlier event is available with a subscription. See plans.

Coverage

We have not published a story about this vulnerability yet.

References

  • supportannouncement.us.dlink.com https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10147
  • nvd.nist.gov https://nvd.nist.gov/vuln/detail/CVE-2019-17621
  • packetstormsecurity.com http://packetstormsecurity.com/files/156054/D-Link-DIR-859-Unauthenticated-Remote-Command-Execution.html
  • medium.com https://medium.com/%40s1kr10s/d-link-dir-859-rce-unautenticated-cve-2019-17621-en-d94b47a15104
  • medium.com https://medium.com/%40s1kr10s/d-link-dir-859-rce-unautenticated-cve-2019-17621-es-fad716629ff9
  • supportannouncement.us.dlink.com https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10146
  • dlink.com https://www.dlink.com/en/security-bulletin
  • ftc.gov https://www.ftc.gov/system/files/documents/cases/dlink_proposed_order_and_judgment_7-2-19.pdf
  • cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-17621