{"api_version":"1","generated_at":"2026-05-31T18:23:57+00:00","cve":"CVE-2026-46037","urls":{"html":"https://cve.report/CVE-2026-46037","api":"https://cve.report/api/cve/CVE-2026-46037.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-46037","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-46037"},"summary":{"title":"ipv4: icmp: validate reply type before using icmp_pointers","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nipv4: icmp: validate reply type before using icmp_pointers\n\nExtended echo replies use ICMP_EXT_ECHOREPLY as the outbound reply type.\nThat value is outside the range covered by icmp_pointers[], which only\ndescribes the traditional ICMP types up to NR_ICMP_TYPES.\n\nAvoid consulting icmp_pointers[] for reply types outside that range, and\nuse array_index_nospec() for the remaining in-range lookup. Normal ICMP\nreplies keep their existing behavior unchanged.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-27 14:17:23","updated_at":"2026-05-30 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Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46037","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d329ea5bd8845f0b196bf41b18b6173340d6e0e4 92e7c209036dcc0e8ffdf806fdfd3645b263bea5 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d329ea5bd8845f0b196bf41b18b6173340d6e0e4 bc64a66e0b9ad937d3d49934242ee62b01ba9a94 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d329ea5bd8845f0b196bf41b18b6173340d6e0e4 c2178ff1c70ebfc2ab9651b230c58a34683db759 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d329ea5bd8845f0b196bf41b18b6173340d6e0e4 d700c34a5d186b9ba0715bcb19e0ff80ffbfbfc1 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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the Linux kernel, the following vulnerability has been resolved:\n\nipv4: icmp: validate reply type before using icmp_pointers\n\nExtended echo replies use ICMP_EXT_ECHOREPLY as the outbound reply type.\nThat value is outside the range covered by icmp_pointers[], which only\ndescribes the traditional ICMP types up to NR_ICMP_TYPES.\n\nAvoid consulting icmp_pointers[] for reply types outside that range, and\nuse array_index_nospec() for the remaining in-range lookup. Normal ICMP\nreplies keep their existing behavior unchanged."}],"metrics":[{"cvssV3_1":{"baseScore":8.2,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","version":"3.1"}}],"providerMetadata":{"dateUpdated":"2026-05-30T10:46:52.692Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/92e7c209036dcc0e8ffdf806fdfd3645b263bea5"},{"url":"https://git.kernel.org/stable/c/bc64a66e0b9ad937d3d49934242ee62b01ba9a94"},{"url":"https://git.kernel.org/stable/c/c2178ff1c70ebfc2ab9651b230c58a34683db759"},{"url":"https://git.kernel.org/stable/c/d700c34a5d186b9ba0715bcb19e0ff80ffbfbfc1"},{"url":"https://git.kernel.org/stable/c/67bf002a2d7387a6312138210d0bd06e3cf4879b"}],"title":"ipv4: icmp: validate reply type before using icmp_pointers","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-46037","datePublished":"2026-05-27T12:56:47.795Z","dateReserved":"2026-05-13T15:03:33.093Z","dateUpdated":"2026-05-30T10:46:52.692Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-27 14:17:23","lastModifiedDate":"2026-05-30 11:17:19","problem_types":[],"metrics":{"cvssMetricV31":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","baseScore":8.2,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":4.2}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"46037","Ordinal":"1","Title":"ipv4: icmp: validate reply type before using icmp_pointers","CVE":"CVE-2026-46037","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"46037","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nipv4: icmp: validate reply type before using icmp_pointers\n\nExtended echo replies use ICMP_EXT_ECHOREPLY as the outbound reply type.\nThat value is outside the range covered by icmp_pointers[], which only\ndescribes the traditional ICMP types up to NR_ICMP_TYPES.\n\nAvoid consulting icmp_pointers[] for reply types outside that range, and\nuse array_index_nospec() for the remaining in-range lookup. Normal ICMP\nreplies keep their existing behavior unchanged.","Type":"Description","Title":"ipv4: icmp: validate reply type before using icmp_pointers"}]}}}