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CVE-2026-23439 udp_tunnel: fix NULL deref caused by udp_sock_create6 when CONFIG_IPV6=n

🗓️ 03 Apr 2026 15:15:23Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 2 Views

CVE-2026-23439: fix UDP tunnel NULL pointer dereference by returning -EPFNOSUPPORT when IPv six is disabled.

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16 Jul 2026 03:31Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.15.5
EPSS0.00129
2