{"schemaVersion":3,"id":"USN-8542-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"dnsmasq vulnerabilities\n\nYiwei Hou discovered that Dnsmasq incorrectly handled logging of DS or\nDNSKEY. A remote attacker could possibly use this issue to cause a\ndenial of service. (CVE-2026-12725)\n\nIt was discovered that Dnsmasq incorrectly validated the length of\nfixed-length DNS record fields when parsing NS section records. A remote\nattacker could possibly use this issue to cause Dnsmasq to read out of\nbounds, possibly exposing sensitive information. (CVE-2026-12969)","dates":{"published":"2026-07-14T17:43:48.000Z","modified":"2026-07-15T04:05:20.571Z","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":"dnsmasq","name":"dnsmasq","label":"dnsmasq","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/dnsmasq","purlType":"deb","versions":[{"text":"< 2.90-0ubuntu0.16.04.1+esm4","noFixRecorded":false,"fixedIn":null},{"text":"< 2.90-0ubuntu0.18.04.1+esm4","noFixRecorded":false,"fixedIn":null},{"text":"< 2.90-0ubuntu0.20.04.1+esm3","noFixRecorded":false,"fixedIn":null},{"text":"< 2.90-0ubuntu0.22.04.4","noFixRecorded":false,"fixedIn":null},{"text":"< 2.90-2ubuntu0.4","noFixRecorded":false,"fixedIn":null},{"text":"< 2.92-1ubuntu0.4","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.90-0ubuntu0.16.04.1+esm4 | < 2.90-0ubuntu0.18.04.1+esm4 | < 2.90-0ubuntu0.20.04.1+esm3 | < 2.90-0ubuntu0.22.04.4 | < 2.90-2ubuntu0.4 | < 2.92-1ubuntu0.4","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-8542-1","label":"ubuntu.com/security/notices/USN-8542-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-12725","label":"ubuntu.com/security/CVE-2026-12725","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-12969","label":"ubuntu.com/security/CVE-2026-12969","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2026-12725","CVE-2026-12969"],"downstream":[],"duplicates":[],"related":["CVE-2026-12725","CVE-2026-12969"]},"timeline":[{"kind":"published","date":"2026-07-14T17:43:48.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-07-15T04:05:20.571Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":0,"level":"minimal","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T03:42:57.978Z","stale":false,"partial":false}}