w309r firmware vulnerabilities and fixes

Recent CVEs affecting w309r firmware, with upgrade or downgrade steps. 1 tracked.

Also searched as: w309rfirmware.

w309r firmware has 1 tracked vulnerability, 1 critical. A fixed release or vendor patch exists for 1. Most recent: 2026-04-29. Highest priority: CVE-2018-25317 (score 60/100).

• CVE-2018-25317 CRITICAL 9.8 MITIGATE MITIGATE Tenda W3002R/A302/W309R wireless routers version V5.07.64_en contain a cookie session weakness vulnerability t

FAQ

How do I fix w309r 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 w309r firmware being exploited right now?

None of the tracked w309r firmware CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.

Which w309r firmware CVE should I patch first?

CVE-2018-25317 currently ranks highest (60/100): Tenda W3002R/A302/W309R wireless routers version V5.07.64_en contain a cookie session weakness vulnerability t.

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