{"api_version":"1","generated_at":"2026-07-28T08:01:52+00:00","cve":"CVE-2026-64411","urls":{"html":"https://cve.report/CVE-2026-64411","api":"https://cve.report/api/cve/CVE-2026-64411.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-64411","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-64411"},"summary":{"title":"netfilter: ebtables: terminate table name before find_table_lock()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: ebtables: terminate table name before find_table_lock()\n\nupdate_counters() and compat_update_counters() forward a user-supplied\n32-byte table name to find_table_lock() without NUL-terminating it. On a\nlookup miss, find_inlist_lock() calls try_then_request_module(..., \"%s%s\",\n\"ebtable_\", name), and vsnprintf() reads past the name field and the\nstack object until it hits a zero byte.\n\n  BUG: KASAN: stack-out-of-bounds in string (lib/vsprintf.c:648 lib/vsprintf.c:730)\n  Read of size 1 at addr ffff8880119dfb20 by task exploit/147\n  Call Trace:\n  ...\n   string (lib/vsprintf.c:648 lib/vsprintf.c:730)\n   vsnprintf (lib/vsprintf.c:2945)\n   __request_module (kernel/module/kmod.c:150)\n   do_update_counters.isra.0 (net/bridge/netfilter/ebtables.c:371 net/bridge/netfilter/ebtables.c:380)\n   update_counters (net/bridge/netfilter/ebtables.c:1440)\n   do_ebt_set_ctl (net/bridge/netfilter/ebtables.c:2573)\n   nf_setsockopt (net/netfilter/nf_sockopt.c:101)\n   ip_setsockopt (net/ipv4/ip_sockglue.c:1424)\n   raw_setsockopt (net/ipv4/raw.c:847)\n   __sys_setsockopt (net/socket.c:2393)\n  ...\n\ncompat_do_replace() shares the same unterminated name via\ncompat_copy_ebt_replace_from_user(); terminate it there too so all\nfind_table_lock() callers behave alike. The other callers already\nterminate the name after the copy.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-25 10:17:24","updated_at":"2026-07-27 05:16:48"},"problem_types":[],"metrics":[{"version":"3.1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","score":"7.1","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","baseScore":7.1,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"7.1","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","data":{"baseScore":7.1,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","version":"3.1"}}],"references":[{"url":"https://git.kernel.org/stable/c/4c046ca4e35a83ea32f6e748f54139f5fe2a1d01","name":"https://git.kernel.org/stable/c/4c046ca4e35a83ea32f6e748f54139f5fe2a1d01","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b6183b1b88a722b6d8ea0cecc99eba168a15e0be","name":"https://git.kernel.org/stable/c/b6183b1b88a722b6d8ea0cecc99eba168a15e0be","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c6f539311e58e76aa96feef0f1572b13a564f8a2","name":"https://git.kernel.org/stable/c/c6f539311e58e76aa96feef0f1572b13a564f8a2","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2664f537ca5bcb2ef3fac2683dcca602e51fad24","name":"https://git.kernel.org/stable/c/2664f537ca5bcb2ef3fac2683dcca602e51fad24","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/6fe8d3cecd20bfaaaf440db3a06ba674d2f2e322","name":"https://git.kernel.org/stable/c/6fe8d3cecd20bfaaaf440db3a06ba674d2f2e322","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ab63ccefb9c71627f957a0724c2b9ebc869c6f20","name":"https://git.kernel.org/stable/c/ab63ccefb9c71627f957a0724c2b9ebc869c6f20","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7436da6c1bc44654b7f11a17e746f6999fd37250","name":"https://git.kernel.org/stable/c/7436da6c1bc44654b7f11a17e746f6999fd37250","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a622d2e9608c9dff47fc2e5759ac7aa3a836b45d","name":"https://git.kernel.org/stable/c/a622d2e9608c9dff47fc2e5759ac7aa3a836b45d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-64411","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64411","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 4c046ca4e35a83ea32f6e748f54139f5fe2a1d01 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 ab63ccefb9c71627f957a0724c2b9ebc869c6f20 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 c6f539311e58e76aa96feef0f1572b13a564f8a2 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 2664f537ca5bcb2ef3fac2683dcca602e51fad24 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 7436da6c1bc44654b7f11a17e746f6999fd37250 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 6fe8d3cecd20bfaaaf440db3a06ba674d2f2e322 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 b6183b1b88a722b6d8ea0cecc99eba168a15e0be git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 a622d2e9608c9dff47fc2e5759ac7aa3a836b45d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2.6.12","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 2.6.12 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.10.261 5.10.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.212 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.178 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.145 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.96 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.39 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.4 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2-rc3 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"64411","cve":"CVE-2026-64411","epss":"0.001260000","percentile":"0.026460000","score_date":"2026-07-27","updated_at":"2026-07-28 00:07:43"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/bridge/netfilter/ebtables.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"4c046ca4e35a83ea32f6e748f54139f5fe2a1d01","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"ab63ccefb9c71627f957a0724c2b9ebc869c6f20","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"c6f539311e58e76aa96feef0f1572b13a564f8a2","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"2664f537ca5bcb2ef3fac2683dcca602e51fad24","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"7436da6c1bc44654b7f11a17e746f6999fd37250","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"6fe8d3cecd20bfaaaf440db3a06ba674d2f2e322","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"b6183b1b88a722b6d8ea0cecc99eba168a15e0be","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"a622d2e9608c9dff47fc2e5759ac7aa3a836b45d","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/bridge/netfilter/ebtables.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.12"},{"lessThan":"2.6.12","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.261","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.212","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.178","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.145","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.96","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.39","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.4","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc3","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.261","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.212","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.178","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.145","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.96","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.39","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.4","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc3","versionStartIncluding":"2.6.12","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: ebtables: terminate table name before find_table_lock()\n\nupdate_counters() and compat_update_counters() forward a user-supplied\n32-byte table name to find_table_lock() without NUL-terminating it. On a\nlookup miss, find_inlist_lock() calls try_then_request_module(..., \"%s%s\",\n\"ebtable_\", name), and vsnprintf() reads past the name field and the\nstack object until it hits a zero byte.\n\n  BUG: KASAN: stack-out-of-bounds in string (lib/vsprintf.c:648 lib/vsprintf.c:730)\n  Read of size 1 at addr ffff8880119dfb20 by task exploit/147\n  Call Trace:\n  ...\n   string (lib/vsprintf.c:648 lib/vsprintf.c:730)\n   vsnprintf (lib/vsprintf.c:2945)\n   __request_module (kernel/module/kmod.c:150)\n   do_update_counters.isra.0 (net/bridge/netfilter/ebtables.c:371 net/bridge/netfilter/ebtables.c:380)\n   update_counters (net/bridge/netfilter/ebtables.c:1440)\n   do_ebt_set_ctl (net/bridge/netfilter/ebtables.c:2573)\n   nf_setsockopt (net/netfilter/nf_sockopt.c:101)\n   ip_setsockopt (net/ipv4/ip_sockglue.c:1424)\n   raw_setsockopt (net/ipv4/raw.c:847)\n   __sys_setsockopt (net/socket.c:2393)\n  ...\n\ncompat_do_replace() shares the same unterminated name via\ncompat_copy_ebt_replace_from_user(); terminate it there too so all\nfind_table_lock() callers behave alike. The other callers already\nterminate the name after the copy."}],"metrics":[{"cvssV3_1":{"baseScore":7.1,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","version":"3.1"}}],"providerMetadata":{"dateUpdated":"2026-07-27T05:00:41.895Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/4c046ca4e35a83ea32f6e748f54139f5fe2a1d01"},{"url":"https://git.kernel.org/stable/c/ab63ccefb9c71627f957a0724c2b9ebc869c6f20"},{"url":"https://git.kernel.org/stable/c/c6f539311e58e76aa96feef0f1572b13a564f8a2"},{"url":"https://git.kernel.org/stable/c/2664f537ca5bcb2ef3fac2683dcca602e51fad24"},{"url":"https://git.kernel.org/stable/c/7436da6c1bc44654b7f11a17e746f6999fd37250"},{"url":"https://git.kernel.org/stable/c/6fe8d3cecd20bfaaaf440db3a06ba674d2f2e322"},{"url":"https://git.kernel.org/stable/c/b6183b1b88a722b6d8ea0cecc99eba168a15e0be"},{"url":"https://git.kernel.org/stable/c/a622d2e9608c9dff47fc2e5759ac7aa3a836b45d"}],"title":"netfilter: ebtables: terminate table name before find_table_lock()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-64411","datePublished":"2026-07-25T08:50:52.143Z","dateReserved":"2026-07-19T15:36:31.786Z","dateUpdated":"2026-07-27T05:00:41.895Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-25 10:17:24","lastModifiedDate":"2026-07-27 05:16:48","problem_types":[],"metrics":{"cvssMetricV31":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","baseScore":7.1,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.2}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"64411","Ordinal":"1","Title":"netfilter: ebtables: terminate table name before find_table_lock","CVE":"CVE-2026-64411","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"64411","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: ebtables: terminate table name before find_table_lock()\n\nupdate_counters() and compat_update_counters() forward a user-supplied\n32-byte table name to find_table_lock() without NUL-terminating it. On a\nlookup miss, find_inlist_lock() calls try_then_request_module(..., \"%s%s\",\n\"ebtable_\", name), and vsnprintf() reads past the name field and the\nstack object until it hits a zero byte.\n\n  BUG: KASAN: stack-out-of-bounds in string (lib/vsprintf.c:648 lib/vsprintf.c:730)\n  Read of size 1 at addr ffff8880119dfb20 by task exploit/147\n  Call Trace:\n  ...\n   string (lib/vsprintf.c:648 lib/vsprintf.c:730)\n   vsnprintf (lib/vsprintf.c:2945)\n   __request_module (kernel/module/kmod.c:150)\n   do_update_counters.isra.0 (net/bridge/netfilter/ebtables.c:371 net/bridge/netfilter/ebtables.c:380)\n   update_counters (net/bridge/netfilter/ebtables.c:1440)\n   do_ebt_set_ctl (net/bridge/netfilter/ebtables.c:2573)\n   nf_setsockopt (net/netfilter/nf_sockopt.c:101)\n   ip_setsockopt (net/ipv4/ip_sockglue.c:1424)\n   raw_setsockopt (net/ipv4/raw.c:847)\n   __sys_setsockopt (net/socket.c:2393)\n  ...\n\ncompat_do_replace() shares the same unterminated name via\ncompat_copy_ebt_replace_from_user(); terminate it there too so all\nfind_table_lock() callers behave alike. The other callers already\nterminate the name after the copy.","Type":"Description","Title":"netfilter: ebtables: terminate table name before find_table_lock"}]}}}