{"affected":[{"defaultStatus":"unaffected","product":"Linux","source":"CNA: Linux","vendor":"Linux","versions":[{"lessThan":"8fc536e9f6856230f19c7d13e71af064b6a77b22","status":"affected","version":"6be3b0db6db82cf056a72cc18042048edd27f8ee","versionType":"git"},{"lessThan":"c4c1ea36d83bf3c4569468ca5b8b614fda1bf821","status":"affected","version":"6be3b0db6db82cf056a72cc18042048edd27f8ee","versionType":"git"},{"lessThan":"25c8c7fb3b0b9668c7d05e209f58c158d2b020c7","status":"affected","version":"6be3b0db6db82cf056a72cc18042048edd27f8ee","versionType":"git"},{"lessThan":"42827d03f8009a6a218bacab153e21f39d6a121c","status":"affected","version":"6be3b0db6db82cf056a72cc18042048edd27f8ee","versionType":"git"},{"lessThan":"88697cf980222d5906a37bf47662dac0732e2a0f","status":"affected","version":"6be3b0db6db82cf056a72cc18042048edd27f8ee","versionType":"git"},{"lessThan":"b5316e2b8614a87d8736941972441cb47bfd4491","status":"affected","version":"6be3b0db6db82cf056a72cc18042048edd27f8ee","versionType":"git"},{"lessThan":"ec82ea4eb220164d854f8734ca5a35e23e577b94","status":"affected","version":"6be3b0db6db82cf056a72cc18042048edd27f8ee","versionType":"git"},{"lessThan":"7f2d76c9c03257c0782afef9d95321fa04096f60","status":"affected","version":"6be3b0db6db82cf056a72cc18042048edd27f8ee","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","source":"CNA: Linux","vendor":"Linux","versions":[{"status":"affected","version":"5.0"},{"lessThan":"5.0","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.143","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.94","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.36","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.13","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","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":"SIMATIC S7-1500 TM MFP - GNU/Linux subsystem","source":"ADP: siemens-SADP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"0","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-2026-53239","cwes":["CWE-362"],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nxfrm: policy: fix use-after-free on inexact bin in xfrm_policy_bysel_ctx()\n\nFix the race by pruning the bin while still holding xfrm_policy_lock,\nbefore dropping it. Use __xfrm_policy_inexact_prune_bin() directly since\nthe lock is already held. The wrapper xfrm_policy_inexact_prune_bin()\nbecomes unused and is removed.\n\nRace:\n\n  CPU0 (XFRM_MSG_DELPOLICY)           CPU1 (XFRM_MSG_NEWSPDINFO)\n  ==========================          ==========================\n  xfrm_policy_bysel_ctx():\n    spin_lock_bh(xfrm_policy_lock)\n    bin = xfrm_policy_inexact_lookup()\n    __xfrm_policy_unlink(pol)\n    spin_unlock_bh(xfrm_policy_lock)\n    xfrm_policy_kill(ret)\n    // wide window, lock not held\n                                       xfrm_hash_rebuild():\n                                         spin_lock_bh(xfrm_policy_lock)\n                                         __xfrm_policy_inexact_flush():\n                                           kfree_rcu(bin)  // bin freed\n                                         spin_unlock_bh(xfrm_policy_lock)\n    xfrm_policy_inexact_prune_bin(bin)\n    // UAF: bin is freed","epss":{"date":"2026-11-09","percentile":0.00922,"score":0.00102},"exploits":[],"kev":null,"metrics":[{"score":7.8,"severity":"high","source":"CNA: Linux","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}],"modifiedAt":1794314900190,"publishedAt":1782376775149,"references":[{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/8fc536e9f6856230f19c7d13e71af064b6a77b22"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/c4c1ea36d83bf3c4569468ca5b8b614fda1bf821"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/25c8c7fb3b0b9668c7d05e209f58c158d2b020c7"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/42827d03f8009a6a218bacab153e21f39d6a121c"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/88697cf980222d5906a37bf47662dac0732e2a0f"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/b5316e2b8614a87d8736941972441cb47bfd4491"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/ec82ea4eb220164d854f8734ca5a35e23e577b94"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/7f2d76c9c03257c0782afef9d95321fa04096f60"},{"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"},{"source":"ADP: siemens-SADP","tags":[],"url":"https://cert-portal.siemens.com/productcert/html/ssa-784472.html"}],"remediation":[],"revision":"ef46d97ef882b3b88fbda21885cfb7de64128902e9674b94ee43b59b1f5426cb","sources":[{"modifiedAt":1794314900190,"name":"CNA: Linux","retrievedAt":1794316690210,"url":"https://www.cve.org/CVERecord?id=CVE-2026-53239"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1794316713132,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-53239"}],"ssvc":{"assessedAt":1792164450875,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"total"},"status":"published","title":"xfrm: policy: fix use-after-free on inexact bin in xfrm_policy_bysel_ctx()","updatedAt":1794316713132}