{"schemaVersion":3,"id":"USN-8588-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"gawk vulnerabilities\n\nIt was discovered that Gawk incorrectly handled memory when processing\ninput using the getline redirection. An attacker could possibly use\nthis issue to cause a denial of service. (CVE-2026-40467)\n\nIt was discovered that Gawk incorrectly handled certain integer\ncalculations when allocating memory. An attacker could possibly use\nthis issue to cause a denial of service or overwrite heap memory with\nattacker-controlled data. (CVE-2026-40468)\n\nIt was discovered that Gawk incorrectly handled certain integer\ncalculations when performing substitutions. An attacker could possibly\nuse this issue to cause a denial of service. (CVE-2026-40469)\n\nIt was discovered that Gawk incorrectly handled memory when reading\ndirectory entries. An attacker could possibly use this issue to cause\na denial of service or execute arbitrary code. This issue only affected\nUbuntu 26.04 LTS. (CVE-2026-40553)","dates":{"published":"2026-07-22T16:29:49.000Z","modified":"2026-07-23T01:29:27.555Z","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":"gawk","name":"gawk","label":"gawk","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/gawk","purlType":"deb","versions":[{"text":"< 1:4.0.1+dfsg-2.1ubuntu2+esm2","noFixRecorded":false,"fixedIn":null},{"text":"< 1:4.1.3+dfsg-0.1ubuntu0.1~esm2","noFixRecorded":false,"fixedIn":null},{"text":"< 1:4.1.4+dfsg-1ubuntu0.1~esm2","noFixRecorded":false,"fixedIn":null},{"text":"< 1:5.0.1+dfsg-1ubuntu0.1+esm1","noFixRecorded":false,"fixedIn":null},{"text":"< 1:5.1.0-1ubuntu0.2","noFixRecorded":false,"fixedIn":null},{"text":"< 1:5.2.1-2ubuntu0.1","noFixRecorded":false,"fixedIn":null},{"text":"< 1:5.3.2-1ubuntu1.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1:4.0.1+dfsg-2.1ubuntu2+esm2 | < 1:4.1.3+dfsg-0.1ubuntu0.1~esm2 | < 1:4.1.4+dfsg-1ubuntu0.1~esm2 | < 1:5.0.1+dfsg-1ubuntu0.1+esm1 | < 1:5.1.0-1ubuntu0.2 | < 1:5.2.1-2ubuntu0.1 | < 1:5.3.2-1ubuntu1.1","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-8588-1","label":"ubuntu.com/security/notices/USN-8588-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-40467","label":"ubuntu.com/security/CVE-2026-40467","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-40468","label":"ubuntu.com/security/CVE-2026-40468","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-40469","label":"ubuntu.com/security/CVE-2026-40469","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-40553","label":"ubuntu.com/security/CVE-2026-40553","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2026-40467","CVE-2026-40468","CVE-2026-40469","CVE-2026-40553"],"downstream":[],"duplicates":[],"related":["CVE-2026-40467","CVE-2026-40468","CVE-2026-40469","CVE-2026-40553"]},"timeline":[{"kind":"published","date":"2026-07-22T16:29:49.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-07-23T01:29:27.555Z","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":"2026-10-21T06:32:11.772Z","stale":false,"partial":false}}