{"schemaVersion":3,"id":"USN-8051-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"libssh vulnerabilities\n\nIt was discovered that libssh clients incorrectly handled the key exchange\nprocess. A remote attacker could possibly use this issue to cause libssh\nclients to crash, resulting in a denial of service. (CVE-2025-8277)\n\nIt was discovered that the libssh SCP client incorrectly sanitized paths\nreceived from servers. A remote attacker could use this issue to cause\nlibssh SCP clients to overwrite files outside of the working directory and\npossibly execute arbitrary code. (CVE-2026-0964)\n\nIt was discovered that libssh incorrectly handled parsing configuration\nfiles. A local attacker could possibly use this issue to cause libssh to\naccess non-regular files, resulting in a denial of service. (CVE-2026-0965)\n\nIt was discovered that libssh incorrectly handled the ssh_get_hexa()\nfunction. A remote attacker could possibly use this issue to cause libssh\nto crash, resulting in a denial of service. (CVE-2026-0966)\n\nIt was discovered that libssh incorrectly handled certain regular\nexpressions. A local attacker could possibly use this issue to cause libssh\nto consume resources, resulting in a denial of service. (CVE-2026-0967)\n\nIt was discovered that the libssh SFTP client incorrectly handled certain\nmalformed longname fields. A remote attacker could use this issue to cause\nlibssh SFTP clients to crash, resulting in a denial of service, or possibly\nexecute arbitrary code. (CVE-2026-0968)","dates":{"published":"2026-02-18T13:14:15.000Z","modified":"2026-05-14T12:34:32.035Z","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":"libssh","name":"libssh","label":"libssh","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/libssh","purlType":"deb","versions":[{"text":"< 0.9.6-2ubuntu0.22.04.6","noFixRecorded":false,"fixedIn":null},{"text":"< 0.10.6-2ubuntu0.3","noFixRecorded":false,"fixedIn":null},{"text":"< 0.11.2-1ubuntu0.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0.9.6-2ubuntu0.22.04.6 | < 0.10.6-2ubuntu0.3 | < 0.11.2-1ubuntu0.2","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-8051-1","label":"ubuntu.com/security/notices/USN-8051-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2025-8277","label":"ubuntu.com/security/CVE-2025-8277","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-0964","label":"ubuntu.com/security/CVE-2026-0964","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-0965","label":"ubuntu.com/security/CVE-2026-0965","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-0966","label":"ubuntu.com/security/CVE-2026-0966","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-0967","label":"ubuntu.com/security/CVE-2026-0967","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-0968","label":"ubuntu.com/security/CVE-2026-0968","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2025-8277","CVE-2026-0964","CVE-2026-0965","CVE-2026-0966","CVE-2026-0967","CVE-2026-0968"],"downstream":[],"duplicates":[],"related":["CVE-2025-8277","CVE-2026-0964","CVE-2026-0965","CVE-2026-0966","CVE-2026-0967","CVE-2026-0968"]},"timeline":[{"kind":"published","date":"2026-02-18T13:14:15.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-05-14T12:34:32.035Z","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":"2026-10-19T23:32:08.352Z","stale":false,"partial":false}}