U.S. flag   An official website of the United States government
Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock (Dot gov) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database

Vulnerability Change Records for CVE-2026-23439

Change History

CVE Modified by kernel.org 6/17/2026 6:21:35 AM

Action Type Old Value New Value
Added Affected 

                  
                
              		

              
                
                  
                  
                    
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["include/net/udp_tunnel.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"fd384412e199b62c3ddaabd18dce86d0e164c5b9","lessThan":"dfc96ae0074cc47b5478a59e5aa19233e434243f","versionType":"git","status":"affected"},{"version":"fd384412e199b62c3ddaabd18dce86d0e164c5b9","lessThan":"66117dbb3dbae82f86735bf727b1d59cc677afa1","versionType":"git","status":"affected"},{"version":"fd384412e199b62c3ddaabd18dce86d0e164c5b9","lessThan":"ba7c9ddcdd077942b798979edb035207374d4096","versionType":"git","status":"affected"},{"version":"fd384412e199b62c3ddaabd18dce86d0e164c5b9","lessThan":"a05a2149386f6dfb4245f522acdbef892acafc84","versionType":"git","status":"affected"},{"version":"fd384412e199b62c3ddaabd18dce86d0e164c5b9","lessThan":"9f036aa0fe46c19e938f03d10e02c23f4fffae5e","versionType":"git","status":"affected"},{"version":"fd384412e199b62c3ddaabd18dce86d0e164c5b9","lessThan":"003343985f26dfefd0c94b1fe1316a2de74428b9","versionType":"git","status":"affected"},{"version":"fd384412e199b62c3ddaabd18dce86d0e164c5b9","lessThan":"12aa4b73a67d95bc739995a2d6943aec2f9785c9","versionType":"git","status":"affected"},{"version":"fd384412e199b62c3ddaabd18dce86d0e164c5b9","lessThan":"b3a6df291fecf5f8a308953b65ca72b7fc9e015d","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["include/net/udp_tunnel.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"3.18","status":"affected"},{"version":"0","lessThan":"3.18","versionType":"semver","status":"unaffected"},{"version":"5.10.253","lessThanOrEqual":"5.10.*","versionType":"semver","status":"unaffected"},{"version":"5.15.203","lessThanOrEqual":"5.15.*","versionType":"semver","status":"unaffected"},{"version":"6.1.167","lessThanOrEqual":"6.1.*","versionType":"semver","status":"unaffected"},{"version":"6.6.130","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.78","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.20","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"6.19.10","lessThanOrEqual":"6.19.*","versionType":"semver","status":"unaffected"},{"version":"7.0","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]