{"id":"CVE-2026-72049","revision":null,"records":[{"revision":"2e3fd0caaa8f433fa6f08a1ff0dc238a","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-72049","aliases":[],"title":"ieee802154: admin-gate legacy LLSEC dump operations","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nieee802154: admin-gate legacy LLSEC dump operations\n\nIn net/ieee802154/netlink.c, the legacy IEEE802154_NL family ops table\nbuilds the LLSEC dump entries (LLSEC_LIST_KEY, LLSEC_LIST_DEV,\nLLSEC_LIST_DEVKEY, LLSEC_LIST_SECLEVEL) with IEEE802154_DUMP() which\nsets no .flags, so generic netlink runs them ungated. The modern\nnl802154 family admin-gates the equivalent reads via\nNL802154_CMD_GET_SEC_KEY and friends with .flags = GENL_ADMIN_PERM.\n\nAny local uid that can open AF_NETLINK / NETLINK_GENERIC can resolve\nthe \"802.15.4 MAC\" family and dump LLSEC_LIST_KEY on any wpan netdev\nthat has an LLSEC key installed; the dump handler writes the raw\n16-byte AES-128 key bytes (IEEE802154_ATTR_LLSEC_KEY_BYTES, copied\nverbatim from struct ieee802154_llsec_key.key) into the reply.\nRecovering the AES key compromises 802.15.4 LLSEC link confidentiality\nand authenticity, since LLSEC uses CCM* and the same key authenticates\nand encrypts frames.\n\nImpact: any local uid with no capabilities can read the raw 16-byte\nAES-128 LLSEC key from the kernel keytable on any wpan netdev that has\nan administrator-installed LLSEC key, by issuing an LLSEC_LIST_KEY\ndump on the legacy IEEE802154_NL generic-netlink family.\n\nIntroduce IEEE802154_DUMP_PRIV() mirroring IEEE802154_DUMP() but\nsetting .flags = GENL_ADMIN_PERM, and use it for the four LLSEC dump\nentries. LIST_PHY and LIST_IFACE retain IEEE802154_DUMP() because the\nmodern nl802154 family exposes their equivalents to unprivileged\nreaders by design (NL802154_CMD_GET_WPAN_PHY and\nNL802154_CMD_GET_INTERFACE carry \"can be retrieved by unprivileged\nusers\" annotations).","state":0,"publishedAt":"2026-08-15T05:52:06.989+00:00","modifiedAt":"2026-10-19T21:19:24.612+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/ieee802154/ieee802154.h\",\n \"net/ieee802154/netlink.c\"\n ],\n \"versions\": [\n {\n \"version\": \"3e9c156e2c210ab67b12b1b692983a6b97c19d3f\",\n \"lessThan\": \"3465035ba18b1ed50f8d201897d14135d20532b0\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"3e9c156e2c210ab67b12b1b692983a6b97c19d3f\",\n \"lessThan\": \"dffe745760f38fac0b8288e0dc4759b23d9888ff\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"3e9c156e2c210ab67b12b1b692983a6b97c19d3f\",\n \"lessThan\": \"e84708ef7521f3bffc85a449954042018abbd60e\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"3e9c156e2c210ab67b12b1b692983a6b97c19d3f\",\n \"lessThan\": \"5abe94a205539d27945cda3ba43fdcfe295cf2c8\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"3e9c156e2c210ab67b12b1b692983a6b97c19d3f\",\n \"lessThan\": \"09fd25cd8cd80a6b3edef04e53a7324d06ac2180\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"3e9c156e2c210ab67b12b1b692983a6b97c19d3f\",\n \"lessThan\": \"1905ebabe638c946aced00c4bb664da26cac56d5\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"3e9c156e2c210ab67b12b1b692983a6b97c19d3f\",\n \"lessThan\": \"6383248058956f2a52d720b1e9f8921099cdae04\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"3e9c156e2c210ab67b12b1b692983a6b97c19d3f\",\n \"lessThan\": \"9c1e0b6d49471a712511d23fc9d06901561135e8\",\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/ieee802154/ieee802154.h\",\n \"net/ieee802154/netlink.c\"\n ],\n \"versions\": [\n {\n \"version\": \"3.16\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"3.16\",\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:U/C:H/I:H/A:N","score":7.1,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/3465035ba18b1ed50f8d201897d14135d20532b0","https://git.kernel.org/stable/c/dffe745760f38fac0b8288e0dc4759b23d9888ff","https://git.kernel.org/stable/c/e84708ef7521f3bffc85a449954042018abbd60e","https://git.kernel.org/stable/c/5abe94a205539d27945cda3ba43fdcfe295cf2c8","https://git.kernel.org/stable/c/09fd25cd8cd80a6b3edef04e53a7324d06ac2180","https://git.kernel.org/stable/c/1905ebabe638c946aced00c4bb664da26cac56d5","https://git.kernel.org/stable/c/6383248058956f2a52d720b1e9f8921099cdae04","https://git.kernel.org/stable/c/9c1e0b6d49471a712511d23fc9d06901561135e8"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-72049","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-72049","identifiers":["CVE-2026-72049"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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