{"schemaVersion":3,"id":"USN-8496-2","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"cifs-utils regression\n\nUSN-8496-1 fixed a vulnerability in cifs-utils. Unfortunately, the fix\nintroduced a regression with Kerberos mounts. This update reverts the\nsecurity update until a complete fix is available.\n\nWe apologize for the inconvenience.\n\nOriginal advisory details:\n\n It was discovered that cifs-utils incorrectly dropped root privileges\n before looking up user information. A local attacker could possibly use\n this issue to execute arbitrary code as the root user.","dates":{"published":"2026-07-03T18:49:32.000Z","modified":"2026-07-04T02:00:06.067Z","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":"cifs-utils","name":"cifs-utils","label":"cifs-utils","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/cifs-utils","purlType":"deb","versions":[{"text":"< 2:6.14-1ubuntu0.5","noFixRecorded":false,"fixedIn":null},{"text":"< 2:7.0-2ubuntu0.4","noFixRecorded":false,"fixedIn":null},{"text":"< 2:7.4-1ubuntu0.25.10.2","noFixRecorded":false,"fixedIn":null},{"text":"< 2:7.4-1ubuntu0.26.04.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2:6.14-1ubuntu0.5 | < 2:7.0-2ubuntu0.4 | < 2:7.4-1ubuntu0.25.10.2 | < 2:7.4-1ubuntu0.26.04.2","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-8496-2","label":"ubuntu.com/security/notices/USN-8496-2","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://launchpad.net/bugs/2159053","label":"launchpad.net/bugs/2159053","hostname":"launchpad.net","tags":["REPORT"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":["CVE-2026-12505"]},"timeline":[{"kind":"published","date":"2026-07-03T18:49:32.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-07-04T02:00:06.067Z","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":"2026-10-19T16:59:25.248Z","stale":false,"partial":false}}