PatchTheCVEdir-600l firmware vulnerabilities and fixes
Recent CVEs affecting dir-600l firmware, with upgrade or downgrade steps. 2 tracked.
Also searched as: dir 600l firmware, dir-600lfirmware.
dir-600l firmware has 2 tracked vulnerabilities, 2 critical. A fixed release or vendor patch exists for 0. Most recent: 2026-05-04. Highest priority: CVE-2026-42374 (score 54/100).
- CVE-2026-42374 CRITICAL 9.8 MITIGATE D-Link DIR-600L Hardware Revision B1 (End-of-Life) contains a hardcoded telnet backdoor
- CVE-2026-42375 CRITICAL 9.8 MITIGATE D-Link DIR-600L Hardware Revision A1 (End-of-Life) contains a hardcoded telnet backdoor
FAQ
How do I fix dir-600l 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 dir-600l firmware being exploited right now?
None of the tracked dir-600l firmware CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.
Which dir-600l firmware CVE should I patch first?
CVE-2026-42374 currently ranks highest (54/100): D-Link DIR-600L Hardware Revision B1 (End-of-Life) contains a hardcoded telnet backdoor.