{"schemaVersion":3,"id":"USN-8851-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"linux, linux-aws, linux-azure, linux-fips, linux-gcp, linux-gcp-5.4, linux-gcp-fips, linux-hwe-5.4, linux-iot, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-xilinx-zynqmp vulnerabilities\n\nSeveral security issues were discovered in the Linux kernel.\nAn attacker could possibly use these to compromise the system.\nThis update corrects flaws in the following subsystems:\n  - Network file system (NFS) server daemon;\n  - IPv6 networking;\n  - Netfilter;\n(CVE-2025-38724, CVE-2026-53131, CVE-2026-53221)","dates":{"published":"2026-09-30T09:53:51.000Z","modified":"2026-09-30T18:27:50.685Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":null,"severity":"unknown","version":null,"versionLabel":null,"source":null,"vector":null,"computed":false,"selection":"none"},"metrics":[]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"ubuntu","product":"linux","name":"linux","label":"linux","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux","purlType":"deb","versions":[{"text":"< 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5.4.0-1151.160","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-oracle","name":"linux-oracle","label":"linux-oracle","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-oracle","purlType":"deb","versions":[{"text":"< 5.4.0-1162.172","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.4.0-1162.172","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-oracle-5.4","name":"linux-oracle-5.4","label":"linux-oracle-5.4","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-oracle-5.4","purlType":"deb","versions":[{"text":"< 5.4.0-1162.172~18.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.4.0-1162.172~18.04.1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-raspi","name":"linux-raspi","label":"linux-raspi","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-raspi","purlType":"deb","versions":[{"text":"< 5.4.0-1147.160","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.4.0-1147.160","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-xilinx-zynqmp","name":"linux-xilinx-zynqmp","label":"linux-xilinx-zynqmp","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-xilinx-zynqmp","purlType":"deb","versions":[{"text":"< 5.4.0-1082.86","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.4.0-1082.86","eol":null,"hubHref":null}],"affectedCount":14,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-8851-1","label":"ubuntu.com/security/notices/USN-8851-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2025-38724","label":"ubuntu.com/security/CVE-2025-38724","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-53131","label":"ubuntu.com/security/CVE-2026-53131","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-53221","label":"ubuntu.com/security/CVE-2026-53221","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2025-38724","CVE-2026-53131","CVE-2026-53221"],"downstream":[],"duplicates":[],"related":["CVE-2025-38724","CVE-2026-53131","CVE-2026-53221"]},"timeline":[{"kind":"published","date":"2026-09-30T09:53:51.000Z","label":"Published","detail":"Vulnerability first 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