CVE-2026-43024

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Globally reject NF_QUEUE immediate verdicts\nto address this issue."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/netfilter/nf_tables_api.c"], "versions": [{"version": "55a60251fa50d4e68175e36666b536a602ce4f6c", "lessThan": "2f7f825a548be55420f0f5f716f6c27b9d312d3f", "status": "affected", "versionType": "git"}, {"version": "960cf4f812530f01f6acc6878ceaa5404c06af7b", "lessThan": "f140593901724cfbd16597c3a4fcb24a58ae44b0", "status": "affected", "versionType": "git"}, {"version": "8e34430e33b8a80bc014f3efe29cac76bc30a4b4", "lessThan": "68390437a998c3f2c57212b413abef5e6d657d88", "status": "affected", "versionType": "git"}, {"version": "6653118b176a00915125521c6572ae8e507621db", "lessThan": "4b12a3cc3f075e750cc3c5e693fd25fb400af4a2", "status": "affected", "versionType": "git"}, {"version": "f342de4e2f33e0e39165d8639387aa6c19dff660", "lessThan": "f710691be163ae6b39e4bcab9e5be32d329f035b", "status": "affected", "versionType": "git"}, {"version": "f342de4e2f33e0e39165d8639387aa6c19dff660", "lessThan": "42a47f4b1b7695026ab9bc1bb35d4622b0835c95", "status": "affected", "versionType": "git"}, {"version": "f342de4e2f33e0e39165d8639387aa6c19dff660", "lessThan": "17dc5d5a935c771338430cbc156a16a51cfd31e8", "status": "affected", "versionType": "git"}, {"version": "f342de4e2f33e0e39165d8639387aa6c19dff660", "lessThan": "da107398cbd4bbdb6bffecb2ce86d5c9384f4cec", "status": "affected", "versionType": "git"}, {"version": "8365e9d92b85fda975a5ece7a3a139cb964018c8", "status": "affected", "versionType": "git"}, {"version": "4e66422f1b56149761dc76030e6345d1cca6f869", "status": "affected", "versionType": "git"}, {"version": "f05a497e7bc8851eeeb3a58da180ba469efebb05", "status": "affected", "versionType": "git"}, {"version": "5.10.210", "lessThan": "5.10.253", "status": "affected", "versionType": "semver"}, {"version": "5.15.149", "lessThan": "5.15.203", "status": "affected", "versionType": "semver"}, {"version": "6.1.76", "lessThan": "6.1.168", "status": "affected", "versionType": "semver"}, {"version": "6.6.15", "lessThan": "6.6.134", "status": "affected", "versionType": "semver"}, {"version": "4.19.307", "lessThan": "4.20", "status": "affected", "versionType": "semver"}, {"version": "5.4.269", "lessThan": "5.5", "status": "affected", "versionType": "semver"}, {"version": "6.7.3", "lessThan": "6.8", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/netfilter/nf_tables_api.c"], "versions": [{"version": "6.8", "status": "affected"}, {"version": "0", "lessThan": "6.8", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.253", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.203", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.168", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.134", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.81", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.22", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.12", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10.210", "versionEndExcluding": "5.10.253"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", 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"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19.307"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4.269"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/2f7f825a548be55420f0f5f716f6c27b9d312d3f"}, {"url": "https://git.kernel.org/stable/c/f140593901724cfbd16597c3a4fcb24a58ae44b0"}, {"url": "https://git.kernel.org/stable/c/68390437a998c3f2c57212b413abef5e6d657d88"}, {"url": "https://git.kernel.org/stable/c/4b12a3cc3f075e750cc3c5e693fd25fb400af4a2"}, {"url": "https://git.kernel.org/stable/c/f710691be163ae6b39e4bcab9e5be32d329f035b"}, {"url": "https://git.kernel.org/stable/c/42a47f4b1b7695026ab9bc1bb35d4622b0835c95"}, {"url": "https://git.kernel.org/stable/c/17dc5d5a935c771338430cbc156a16a51cfd31e8"}, {"url": "https://git.kernel.org/stable/c/da107398cbd4bbdb6bffecb2ce86d5c9384f4cec"}], "title": "netfilter: nf_tables: reject immediate NF_QUEUE verdict", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"x_adpType": "supplier", "providerMetadata": {"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "shortName": "siemens-SADP", "dateUpdated": "2026-11-10T12:46:01.495Z"}, "affected": [{"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)", "versions": [{"status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)", "versions": [{"status": "affected", "version": "V3.1.5", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)", "versions": [{"status": "affected", "version": "V3.1.7", "lessThan": "*", 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"references": [{"url": "https://git.kernel.org/stable/c/2f7f825a548be55420f0f5f716f6c27b9d312d3f"}, {"url": "https://git.kernel.org/stable/c/f140593901724cfbd16597c3a4fcb24a58ae44b0"}, {"url": "https://git.kernel.org/stable/c/68390437a998c3f2c57212b413abef5e6d657d88"}, {"url": "https://git.kernel.org/stable/c/4b12a3cc3f075e750cc3c5e693fd25fb400af4a2"}, {"url": "https://git.kernel.org/stable/c/f710691be163ae6b39e4bcab9e5be32d329f035b"}, {"url": "https://git.kernel.org/stable/c/42a47f4b1b7695026ab9bc1bb35d4622b0835c95"}, {"url": "https://git.kernel.org/stable/c/17dc5d5a935c771338430cbc156a16a51cfd31e8"}, {"url": "https://git.kernel.org/stable/c/da107398cbd4bbdb6bffecb2ce86d5c9384f4cec"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: reject immediate NF_QUEUE verdict\n\nnft_queue is always used from userspace nftables to deliver the NF_QUEUE\nverdict. Immediately emitting an NF_QUEUE verdict is never used by the\nuserspace nft tools, so reject immediate NF_QUEUE verdicts.\n\nThe arp family does not provide queue support, but such an immediate\nverdict is still reachable. Globally reject NF_QUEUE immediate verdicts\nto address this issue."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.253", "versionStartIncluding": "5.10.210"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.203", "versionStartIncluding": "5.15.149"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.168", "versionStartIncluding": "6.1.76"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.134", "versionStartIncluding": "6.6.15"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.81", "versionStartIncluding": "6.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.18.22", "versionStartIncluding": "6.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.19.12", "versionStartIncluding": "6.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.0", "versionStartIncluding": "6.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "4.19.307"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "5.4.269"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "6.7.3"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-23T16:06:03.632Z"}}}, "cveMetadata": {"cveId": "CVE-2026-43024", "state": "PUBLISHED", "dateUpdated": "2026-11-10T12:46:01.495Z", "dateReserved": "2026-05-01T14:12:55.975Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2026-05-01T14:15:26.424Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

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Immediately emitting an NF_QUEUE verdict is never used by the\nuserspace nft tools, so reject immediate NF_QUEUE verdicts.\n\nThe arp family does not provide queue support, but such an immediate\nverdict is still reachable. Globally reject NF_QUEUE immediate verdicts\nto address this issue."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nnetfilter: nf_tables: rechazar veredicto NF_QUEUE inmediato\n\nnft_queue siempre se utiliza desde nftables en espacio de usuario para entregar el veredicto NF_QUEUE. La emisi\u00f3n inmediata de un veredicto NF_QUEUE nunca es utilizada por las herramientas nft en espacio de usuario, por lo tanto, se rechazan los veredictos NF_QUEUE inmediatos.\n\nLa familia arp no proporciona soporte de cola, pero un veredicto inmediato de este tipo sigue siendo alcanzable. Rechazar globalmente los veredictos inmediatos NF_QUEUE para abordar este problema."}], "id": "CVE-2026-43024", "lastModified": "2026-11-11T23:10:00.263", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-43024", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-06T15:26:18.242222Z", "version": "2.0.3"}}]}, "published": "2026-05-01T15:16:46.760", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/17dc5d5a935c771338430cbc156a16a51cfd31e8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2f7f825a548be55420f0f5f716f6c27b9d312d3f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/42a47f4b1b7695026ab9bc1bb35d4622b0835c95"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4b12a3cc3f075e750cc3c5e693fd25fb400af4a2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/68390437a998c3f2c57212b413abef5e6d657d88"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/da107398cbd4bbdb6bffecb2ce86d5c9384f4cec"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f140593901724cfbd16597c3a4fcb24a58ae44b0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f710691be163ae6b39e4bcab9e5be32d329f035b"}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "url": "https://cert-portal.siemens.com/productcert/html/ssa-082556.html"}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "url": "https://cert-portal.siemens.com/productcert/html/ssa-457936.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: netfilter: nf_tables: reject immediate NF_QUEUE verdict", "id": "2464461", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2464461"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-115", "details": ["A flaw was found in the Linux kernel's netfilter nf_tables component. This vulnerability arises from the system allowing immediate NF_QUEUE verdicts, which are not intended for use by userspace nft tools. This could lead to unexpected behavior or a bypass of intended network filtering rules, potentially impacting system stability or security policies."], "name": "CVE-2026-43024", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-43024\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-43024\nhttps://lore.kernel.org/linux-cve-announce/2026050159-CVE-2026-43024-9383@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[55a60251fa50d4e68175e36666b536a602ce4f6c,2f7f825a548be55420f0f5f716f6c27b9d312d3f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[960cf4f812530f01f6acc6878ceaa5404c06af7b,f140593901724cfbd16597c3a4fcb24a58ae44b0)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8e34430e33b8a80bc014f3efe29cac76bc30a4b4,68390437a998c3f2c57212b413abef5e6d657d88)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[6653118b176a00915125521c6572ae8e507621db,4b12a3cc3f075e750cc3c5e693fd25fb400af4a2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f342de4e2f33e0e39165d8639387aa6c19dff660,f710691be163ae6b39e4bcab9e5be32d329f035b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f342de4e2f33e0e39165d8639387aa6c19dff660,42a47f4b1b7695026ab9bc1bb35d4622b0835c95)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f342de4e2f33e0e39165d8639387aa6c19dff660,17dc5d5a935c771338430cbc156a16a51cfd31e8)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f342de4e2f33e0e39165d8639387aa6c19dff660,da107398cbd4bbdb6bffecb2ce86d5c9384f4cec)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8365e9d92b85fda975a5ece7a3a139cb964018c8,*]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4e66422f1b56149761dc76030e6345d1cca6f869,*]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f05a497e7bc8851eeeb3a58da180ba469efebb05,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.8,*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.8)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[5.10.253,5.10.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[5.15.203,5.15.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.1.168,6.1.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.6.134,6.6.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.12.81,6.12.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.18.22,6.18.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.19.12,6.19.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.0,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-05-01T18:30:05.210621+00:00", "updated": "2026-05-08T20:30:16.044739+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}