How to check if you are exposed to CVE-2016-11021
- Find every D-Link DCS-930L Devices system you or your clients run, including ones exposed to the internet. Those come first: CISA only lists flaws attackers are already using.
- Compare each version with the fixed versions in the vendor advisory. Where no fix exists yet, apply the vendor’s mitigation or take the system off the internet.
- Run a credentialed vulnerability scan to catch the systems you missed, then check that the next scan no longer reports CVE-2016-11021.
US federal agencies had to fix this by 2022-04-15. Everyone else should treat that deadline as a guide: if it has passed, this is overdue.
Timeline
- · Added to CISA's Known Exploited Vulnerabilities catalog
- · Fix-by date for US federal agencies, passed 1,661 days ago
Weakness type
More exploited D-Link vulnerabilities
CISA lists 26 exploited D-Link vulnerabilities. The closest matches:
- CVE-2025-29635D-Link DIR-823X Command Injection VulnerabilityAdded 2026-04-24
- CVE-2022-37055D-Link Routers Buffer Overflow VulnerabilityAdded 2025-12-08
- CVE-2022-40799D-Link DNR-322L Download of Code Without Integrity Check VulnerabilityAdded 2025-08-05
- CVE-2020-25079D-Link DCS-2530L and DCS-2670L Command Injection VulnerabilityAdded 2025-08-05
- CVE-2020-25078D-Link DCS-2530L and DCS-2670L Devices Unspecified VulnerabilityAdded 2025-08-05
- CVE-2024-0769 D-Link DIR-859 Router Path Traversal VulnerabilityAdded 2025-06-25
- CVE-2023-25280D-Link DIR-820 Router OS Command Injection VulnerabilityAdded 2024-09-30
- CVE-2021-40655D-Link DIR-605 Router Information Disclosure VulnerabilityAdded 2024-05-16
Keep going
Sources: CISA Known Exploited Vulnerabilities catalog (version 2026.10.30); EPSS data from FIRST.org; CVSS and descriptions from the NIST National Vulnerability Database. Checked 2026-11-01. This product uses the NVD API but is not endorsed or certified by the NVD.