{"id":"CVE-2026-46037","title":"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 cov…","summary":"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 cov…","severity":"high","cvss":8.2,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 5.13, < 5.15.209","linux_kernel >= 5.16, < 6.1.175","linux_kernel >= 6.2, < 6.6.140","linux_kernel >= 6.7, < 6.12.86","linux_kernel >= 6.13, < 6.18.27","linux_kernel >= 6.19, < 7.0.4"],"patched":["linux_kernel 7.0.4"],"published":"2026-05-27","updated":"2026-09-08","sourceUpdated":"2026-09-08T09:18:06.897","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-46037","references":[{"url":"https://git.kernel.org/stable/c/67bf002a2d7387a6312138210d0bd06e3cf4879b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/92e7c209036dcc0e8ffdf806fdfd3645b263bea5","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/93df2af4f491de33827550b9d420f01808c0706b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b3a88fc5ae024d43c5ecf653f3bbe837e4a6dc99","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/bc64a66e0b9ad937d3d49934242ee62b01ba9a94","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/c2178ff1c70ebfc2ab9651b230c58a34683db759","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d700c34a5d186b9ba0715bcb19e0ff80ffbfbfc1","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-019113.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","cve.org"],"epss":0.00443,"epssPercentile":0.37819,"ingestedAt":"2026-09-08T13:33:24.304Z","slug":"CVE-2026-46037","body":"## Overview\n\nIn 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.\n\n## Affected\n\n- `linux_kernel >= 5.13, < 5.15.209`\n- `linux_kernel >= 5.16, < 6.1.175`\n- `linux_kernel >= 6.2, < 6.6.140`\n- `linux_kernel >= 6.7, < 6.12.86`\n- `linux_kernel >= 6.13, < 6.18.27`\n- `linux_kernel >= 6.19, < 7.0.4`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 7.0.4`","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":45.1,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}