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dgs-3420-28tc firmware vulnerabilities and fixes

Recent CVEs affecting dgs-3420-28tc firmware, with upgrade or downgrade steps. 1 tracked.

Also searched as: dgs 3420 28tc firmware, dgs-3420-28tcfirmware.

dgs-3420-28tc firmware has 1 tracked vulnerability, 0 critical. A fixed release or vendor patch exists for 0. Most recent: 2026-04-26. Highest priority: CVE-2026-7026 (score 27/100).

FAQ

How do I fix dgs-3420-28tc firmware vulnerabilities?

Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.

Is dgs-3420-28tc firmware being exploited right now?

None of the tracked dgs-3420-28tc firmware CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.

Which dgs-3420-28tc firmware CVE should I patch first?

CVE-2026-7026 currently ranks highest (27/100): A vulnerability was determined in D-Link DGS-3420 1.50.018.

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