{"id":"CVE-2026-53002","revision":null,"records":[{"revision":"709b4fdb9d5a4f2a85cd0dbc14b96e8e","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-53002","aliases":[],"title":"netfilter: conntrack: remove sprintf usage","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: conntrack: remove sprintf usage\n\nReplace it with scnprintf, the buffer sizes are expected to be large enough\nto hold the result, no need for snprintf+overflow check.\n\nIncrease buffer size in mangle_content_len() while at it.\n\nBUG: KASAN: stack-out-of-bounds in vsnprintf+0xea5/0x1270\nWrite of size 1 at addr [..]\n vsnprintf+0xea5/0x1270\n sprintf+0xb1/0xe0\n mangle_content_len+0x1ac/0x280\n nf_nat_sdp_session+0x1cc/0x240\n process_sdp+0x8f8/0xb80\n process_invite_request+0x108/0x2b0\n process_sip_msg+0x5da/0xf50\n sip_help_tcp+0x45e/0x780\n nf_confirm+0x34d/0x990\n [..]","state":0,"publishedAt":"2026-06-24T16:29:14.391+00:00","modifiedAt":"2026-10-19T19:47:13.138+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/netfilter/nf_nat_amanda.c\",\n \"net/netfilter/nf_nat_sip.c\"\n ],\n \"versions\": [\n {\n \"version\": \"9fafcd7b203229c3f3893a475741afc27e276306\",\n \"lessThan\": \"2f793ba78470a99f40389b7dc60a81d9f5ad3956\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"9fafcd7b203229c3f3893a475741afc27e276306\",\n \"lessThan\": \"6bbf829b4c1b44c941c47dd0d710f1393258f3d5\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"9fafcd7b203229c3f3893a475741afc27e276306\",\n \"lessThan\": \"ab64e61c9323fa6de21bd20da1ddb29a0fb65d34\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"9fafcd7b203229c3f3893a475741afc27e276306\",\n \"lessThan\": \"1c9fb8aeed06790d42cdcd00f6c3ce0b9e926c1e\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"9fafcd7b203229c3f3893a475741afc27e276306\",\n \"lessThan\": \"a8e0a32a23d3f34862af3b4da792ecb3a891a9a3\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"9fafcd7b203229c3f3893a475741afc27e276306\",\n \"lessThan\": \"8e3be0d12615a173fe260cd42753ca7a001acbf2\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"9fafcd7b203229c3f3893a475741afc27e276306\",\n \"lessThan\": \"c08ff52e44945e6ef4ce0790f49ea761b060c45b\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"9fafcd7b203229c3f3893a475741afc27e276306\",\n \"lessThan\": \"6e7066bdb481a87fe88c4fa563e348c03b2d373d\",\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/netfilter/nf_nat_amanda.c\",\n \"net/netfilter/nf_nat_sip.c\"\n ],\n \"versions\": [\n {\n \"version\": \"2.6.20\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"2.6.20\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.258\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.209\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.175\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.141\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.91\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.18.33\",\n \"lessThanOrEqual\": \"6.18.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.0.10\",\n \"lessThanOrEqual\": \"7.0.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.1\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8,"severity":"CRITICAL"}],"references":["https://git.kernel.org/stable/c/2f793ba78470a99f40389b7dc60a81d9f5ad3956","https://git.kernel.org/stable/c/6bbf829b4c1b44c941c47dd0d710f1393258f3d5","https://git.kernel.org/stable/c/ab64e61c9323fa6de21bd20da1ddb29a0fb65d34","https://git.kernel.org/stable/c/1c9fb8aeed06790d42cdcd00f6c3ce0b9e926c1e","https://git.kernel.org/stable/c/a8e0a32a23d3f34862af3b4da792ecb3a891a9a3","https://git.kernel.org/stable/c/8e3be0d12615a173fe260cd42753ca7a001acbf2","https://git.kernel.org/stable/c/c08ff52e44945e6ef4ce0790f49ea761b060c45b","https://git.kernel.org/stable/c/6e7066bdb481a87fe88c4fa563e348c03b2d373d"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-53002","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-53002","identifiers":["CVE-2026-53002"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; 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