{"id":"CVE-2026-72136","revision":null,"records":[{"revision":"084b7a6e96764f1e937f5c0d921ae9f0","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-72136","aliases":[],"title":"xfrm: xfrm_interface: require CAP_NET_ADMIN in the device netns for changelink","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nxfrm: xfrm_interface: require CAP_NET_ADMIN in the device netns for changelink\n\nxfrmi_changelink() operates on at most two netns, dev_net(dev) and the\ninterface link netns xi->net. They differ once the device is created in\nor moved to a netns other than the one the request runs in. The rtnl\nchangelink path checks CAP_NET_ADMIN only against dev_net(dev), so a\ncaller privileged there but not in xi->net can rewrite an interface that\nlives in xi->net.\n\nGate xfrmi_changelink() on rtnl_dev_link_net_capable() at its top,\nbefore any attribute is parsed.","state":0,"publishedAt":"2026-08-15T05:53:11.072+00:00","modifiedAt":"2026-10-16T18:44:58.796+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"unaffected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"net/xfrm/xfrm_interface_core.c\"\n ],\n \"versions\": [\n {\n \"version\": \"f203b76d78092faf248db3f851840fbecf80b40e\",\n \"lessThan\": \"04c1aa57d08471b1953bf27c84ac9b3d78d71831\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"f203b76d78092faf248db3f851840fbecf80b40e\",\n \"lessThan\": \"bdfd1c21d90e628a58a9de79e024cdfcbedfa15c\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"f203b76d78092faf248db3f851840fbecf80b40e\",\n \"lessThan\": \"80ec68bba11f7f387c0e4099c2d7b2c84943eb99\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"f203b76d78092faf248db3f851840fbecf80b40e\",\n \"lessThan\": \"e9c90756f10da334fb31552e52c61f1dba69f491\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"f203b76d78092faf248db3f851840fbecf80b40e\",\n \"lessThan\": \"37b61946d278c7deb0d40ba8f2b6fc0478d61dab\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"f203b76d78092faf248db3f851840fbecf80b40e\",\n \"lessThan\": \"8ca2a19a987a7d1cb4c916ed9723a1c6993b4276\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"f203b76d78092faf248db3f851840fbecf80b40e\",\n \"lessThan\": \"3ba2b2ef7d6a63b190f15cfc2b4ba0fba59928ea\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"f203b76d78092faf248db3f851840fbecf80b40e\",\n \"lessThan\": \"095515d89b19b6cc19dfcdc846f97403ed1ebce3\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n }\n ]\n }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"affected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"net/xfrm/xfrm_interface_core.c\"\n ],\n \"versions\": [\n {\n \"version\": \"4.19\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"4.19\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.261\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.212\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.178\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.145\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.97\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.18.40\",\n \"lessThanOrEqual\": \"6.18.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.1.5\",\n \"lessThanOrEqual\": \"7.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.2\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","score":8.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/04c1aa57d08471b1953bf27c84ac9b3d78d71831","https://git.kernel.org/stable/c/bdfd1c21d90e628a58a9de79e024cdfcbedfa15c","https://git.kernel.org/stable/c/80ec68bba11f7f387c0e4099c2d7b2c84943eb99","https://git.kernel.org/stable/c/e9c90756f10da334fb31552e52c61f1dba69f491","https://git.kernel.org/stable/c/37b61946d278c7deb0d40ba8f2b6fc0478d61dab","https://git.kernel.org/stable/c/8ca2a19a987a7d1cb4c916ed9723a1c6993b4276","https://git.kernel.org/stable/c/3ba2b2ef7d6a63b190f15cfc2b4ba0fba59928ea","https://git.kernel.org/stable/c/095515d89b19b6cc19dfcdc846f97403ed1ebce3"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-72136","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-72136","identifiers":["CVE-2026-72136"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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