{"affected":[{"defaultStatus":"unaffected","product":"Linux","source":"CNA: 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Linux","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":"6.12.97","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","versionType":"original_commit_for_fix"}]},{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)","source":"ADP: siemens-SADP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)","source":"ADP: siemens-SADP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.7","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)","source":"ADP: siemens-SADP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)","source":"ADP: siemens-SADP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.7","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)","source":"ADP: siemens-SADP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)","source":"ADP: siemens-SADP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.7","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)","source":"ADP: siemens-SADP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)","source":"ADP: siemens-SADP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.7","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)","source":"ADP: siemens-SADP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)","source":"ADP: siemens-SADP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.7","versionType":"custom"}]}],"cveId":"CVE-2026-64413","cwes":["CWE-457"],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: ebtables: zero chainstack array\n\nsashiko reports:\n looking at ebtables table\n translation, could a sparse cpu_possible_mask lead to an uninitialized pointer\n free?\n\n If cpu_possible_mask is sparse (for example, CPU 0 and CPU 2 are possible,\n but CPU 1 is not), the allocation loop skips CPU 1. If vmalloc_node() fails at\n CPU 2, the cleanup loop will blindly decrement and call vfree() on\n newinfo->chainstack[1].\n\nNot a real-world bug, such allocation isn't expected to fail\nin the first place.","epss":{"date":"2026-11-09","percentile":0.02446,"score":0.00128},"exploits":[],"kev":null,"metrics":[{"score":7,"severity":"high","source":"CNA: Linux","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}],"modifiedAt":1794314957755,"publishedAt":1784969453759,"references":[{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/2ade612967e2cdfb9290ebcb773f302c82f311fa"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/42bef500d07b5769d916e9122a3e3fa3fd2245ef"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/fc7f105451044501a50cfd530cfa3b472c54acbc"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/9e6c5169db423e51dcc66a73fd15409c0d38e088"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/29bf41a9b59aff9f6197df58641a00037d567ca8"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/9f74d28e903fa4fdf82f870d0aeadddc8196e41c"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/5ee856e4208acafaaaf7b84824d39b78c21345d6"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/cbfe53599eebffd188938ab6774cc41794f6f9d5"},{"source":"ADP: siemens-SADP","tags":[],"url":"https://cert-portal.siemens.com/productcert/html/ssa-019113.html"},{"source":"ADP: siemens-SADP","tags":[],"url":"https://cert-portal.siemens.com/productcert/html/ssa-457936.html"}],"remediation":[],"revision":"5602c54f020e3b675a0561c793fae426257b0ac564af215f935d9f408f33c07c","sources":[{"modifiedAt":1794314957755,"name":"CNA: Linux","retrievedAt":1794316735537,"url":"https://www.cve.org/CVERecord?id=CVE-2026-64413"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1794316747766,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-64413"}],"ssvc":{"assessedAt":1792165224345,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"total"},"status":"published","title":"netfilter: ebtables: zero chainstack array","updatedAt":1794316747766}