Vulnerability record

CVE-2021-45382

D-Link Multiple Routers Remote Code 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 Multiple Routers, fix it now.

CISA required action: The impacted product is end-of-life and should be disconnected if still in use.

US federal civilian agencies must remediate by Apr 25, 2022.

Patch status

No official fix confirmed yet

Until a fix ships, follow the vendor's mitigations and CISA's required action, limit exposure of affected systems, and watch this record for a patch.

Description

A Remote Command Execution (RCE) vulnerability exists in all series H/W revisions D-link DIR-810L, DIR-820L/LW, DIR-826L, DIR-830L, and DIR-836L routers via the DDNS function in ncc2 binary file. Note: DIR-810L, DIR-820L, DIR-830L, DIR-826L, DIR-836L, all hardware revisions, have reached their End of Life ("EOL") /End of Service Life ("EOS") Life-Cycle and as such this issue will not be patched.

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
Multiple RoutersD-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-2021-45382 scored CVSS 9.8: D-Link Multiple Routers, D-Link Multiple Routers Remote Code Execution Vulnerability

    CISA lists this as exploited in the wild. Unpatched Multiple Routers systems are exposed to active attacks now.

    Basis: NIST National Vulnerability Database

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

Coverage

We have not published a story about this vulnerability yet.

References

  • nvd.nist.gov https://nvd.nist.gov/vuln/detail/CVE-2021-45382
  • github.com https://github.com/doudoudedi/D-LINK_Command_Injection1/blob/main/D-LINK_Command_injection.md
  • supportannouncement.us.dlink.com https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10264
  • cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-45382