{"id":"CVE-2026-46174","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nx86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache\n\nMake sure resources are not improperly shared in the op cache and\ncause instruction corr…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nx86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache\n\nMake sure resources are not improperly shared in the op cache and\ncause instruction corr…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 3.16.58, < 3.17","linux_kernel >= 4.4.144, < 4.5","linux_kernel >= 4.9.102, < 4.10","linux_kernel >= 4.14.1, < 5.10.256","linux_kernel >= 5.11, < 5.15.207","linux_kernel >= 5.16, < 6.1.173","linux_kernel >= 6.2, < 6.6.139","linux_kernel >= 6.7, < 6.12.88","linux_kernel >= 6.13, < 6.18.30","linux_kernel >= 6.19, < 7.0.7","linux_kernel = 4.14","linux_kernel = 7.1"],"patched":["linux_kernel 7.0.7"],"published":"2026-05-28","updated":"2026-10-15","sourceUpdated":"2026-10-15T02:19:48.433","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-46174","references":[{"url":"https://git.kernel.org/stable/c/1cd85a19748b2407830376a5cbae5c0f126016e5","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/1e23b30a80b14e5764657401ee2cca030525ae8e","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/251497955f2314cd39d43191e81c6151dead4c7b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/28f5ed477eef166d678d6966762cbc1de9b4f436","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/9109489cc8c34e50d15575a3d1ff82af586bc1aa","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/c21b90f77687075115d989e53a8ec5e2bb427ab1","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f5bc3aef7df46eaaf423d7413ab8833f704ae576","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ff6fc65b3bf73acc5ee71919154d830ad5431362","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-019113.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-082556.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-457936.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","cve.org"],"epss":0.00153,"epssPercentile":0.04383,"ingestedAt":"2026-09-08T15:33:26.988Z","ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-16T15:20:43.490528Z"},"slug":"CVE-2026-46174","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nx86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache\n\nMake sure resources are not improperly shared in the op cache and\ncause instruction corruption this way.\n\n## Affected\n\n- `linux_kernel >= 3.16.58, < 3.17`\n- `linux_kernel >= 4.4.144, < 4.5`\n- `linux_kernel >= 4.9.102, < 4.10`\n- `linux_kernel >= 4.14.1, < 5.10.256`\n- `linux_kernel >= 5.11, < 5.15.207`\n- `linux_kernel >= 5.16, < 6.1.173`\n- `linux_kernel >= 6.2, < 6.6.139`\n- `linux_kernel >= 6.7, < 6.12.88`\n- `linux_kernel >= 6.13, < 6.18.30`\n- `linux_kernel >= 6.19, < 7.0.7`\n- `linux_kernel = 4.14`\n- `linux_kernel = 7.1`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 7.0.7`","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}