{"schemaVersion":3,"id":"USN-8788-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"clamav vulnerabilities\n\nIt was discovered that ClamAV incorrectly handled certain zip archive\nfiles. A remote attacker could possibly use this issue to cause ClamAV\nto crash, resulting in a denial of service. (CVE-2026-20337,\nCVE-2026-20338)\n\nIt was discovered that ClamAV incorrectly handled certain PESpin files.\nA remote attacker could possibly use this issue to cause ClamAV to\ncrash, resulting in a denial of service. (CVE-2026-20339)\n\nIt was discovered that ClamAV incorrectly handled certain GPT files. A\nremote attacker could possibly use this issue to cause ClamAV to crash,\nresulting in a denial of service. (CVE-2026-20345)\n\nIt was discovered that ClamAV incorrectly handled certain PDF files. A\nremote attacker could possibly use this issue to cause ClamAV to crash,\nresulting in a denial of service. (CVE-2026-20346)\n\nIt was discovered that ClamAV incorrectly handled certain Mach-O files.\nA remote attacker could possibly use this issue to cause ClamAV to\ncrash, resulting in a denial of service. (CVE-2026-20347)\n\nIt was discovered that ClamAV incorrectly handled certain XAR files. A\nremote attacker could possibly use this issue to cause ClamAV to crash,\nresulting in a denial of service. (CVE-2026-20348)","dates":{"published":"2026-09-21T12:05:10.000Z","modified":"2026-09-21T21:42:45.295Z","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":"clamav","name":"clamav","label":"clamav","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/clamav","purlType":"deb","versions":[{"text":"< 1.5.4+dfsg-0ubuntu0.22.04.1","noFixRecorded":false,"fixedIn":null},{"text":"< 1.5.4+dfsg-0ubuntu0.24.04.1","noFixRecorded":false,"fixedIn":null},{"text":"< 1.5.4+dfsg-0ubuntu0.26.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.5.4+dfsg-0ubuntu0.22.04.1 | < 1.5.4+dfsg-0ubuntu0.24.04.1 | < 1.5.4+dfsg-0ubuntu0.26.04.1","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-8788-1","label":"ubuntu.com/security/notices/USN-8788-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-20337","label":"ubuntu.com/security/CVE-2026-20337","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-20338","label":"ubuntu.com/security/CVE-2026-20338","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-20339","label":"ubuntu.com/security/CVE-2026-20339","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-20345","label":"ubuntu.com/security/CVE-2026-20345","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-20346","label":"ubuntu.com/security/CVE-2026-20346","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-20347","label":"ubuntu.com/security/CVE-2026-20347","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-20348","label":"ubuntu.com/security/CVE-2026-20348","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2026-20337","CVE-2026-20338","CVE-2026-20339","CVE-2026-20345","CVE-2026-20346","CVE-2026-20347","CVE-2026-20348"],"downstream":[],"duplicates":[],"related":["CVE-2026-20337","CVE-2026-20338","CVE-2026-20339","CVE-2026-20345","CVE-2026-20346","CVE-2026-20347","CVE-2026-20348"]},"timeline":[{"kind":"published","date":"2026-09-21T12:05:10.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-09-21T21:42:45.295Z","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":"2026-10-20T09:49:04.521Z","stale":false,"partial":false}}