ipv6 vulnerabilities and fixes
Recent CVEs affecting ipv6, with upgrade or downgrade steps. 2 tracked.
ipv6 has 2 tracked vulnerabilities, 0 critical. A fixed release or vendor patch exists for 0. Most recent: 2025-01-14. Highest priority: CVE-2025-23019 (score 40/100).
- CVE-2025-23019 MEDIUM 5.4 MITIGATE IPv6-in-IPv4 tunneling (RFC 4213) allows an attacker to spoof and route traffic via an exposed network interfa
- CVE-2025-23018 MEDIUM 5.4 MITIGATE IPv4-in-IPv6 and IPv6-in-IPv6 tunneling (RFC 2473) do not require the validation or verification of the source
FAQ
How do I fix ipv6 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 ipv6 being exploited right now?
None of the tracked ipv6 CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.
Which ipv6 CVE should I patch first?
CVE-2025-23019 currently ranks highest (40/100): IPv6-in-IPv4 tunneling (RFC 4213) allows an attacker to spoof and route traffic via an exposed network interfa.