{"schemaVersion":3,"id":"CVE-2026-42798","aliases":["UBUNTU-CVE-2026-42798","DEBIAN-CVE-2026-42798"],"status":"published","duplicateOf":null,"title":null,"description":"Little CMS (lcms2) 2.16 through 2.18 before 2.19 has an integer overflow in ParseCube in cmscgats.c.","dates":{"published":"2026-04-30T06:34:13.323Z","modified":"2026-04-30T12:57:14.221Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":4,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":4,"severity":"medium","vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Ubuntu","score":4,"severity":"medium","vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L","exploitability":3.6,"impact":4.2,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Debian","score":4,"severity":"medium","vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L","exploitability":3.6,"impact":4.2,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":4,"severity":"medium","vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00154,"percentile":0.04072,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0.02599999999999998,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.00128},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00128,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00128,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00128,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00128,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00128,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00128,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00128,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00128,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00128,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00128,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00154,"percentile":0.04072}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.00128,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00128,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00128,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00128,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00128,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00154,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00154,"percentile":0.04072}]},"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":[{"id":"CWE-190","name":"Integer Overflow or Wraparound","description":"The product performs a calculation that can\n         produce an integer overflow or wraparound when the logic\n         assumes that the resulting value will always be larger than\n         the original value. This occurs when an integer value is\n         incremented to a value that is too large to store in the\n         associated representation. When this occurs, the value may\n         become a very small or negative number.","type":"weakness","status":"Stable","abstraction":"Base","likelihoodOfExploit":"Medium","url":"https://cwe.mitre.org/data/definitions/190.html"}],"affected":[{"vendor":"debian","product":"lcms2","name":"lcms2","label":"lcms2","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/lcms2","purlType":"deb","versions":[{"text":"< 2.16-2+deb13u2","noFixRecorded":false,"fixedIn":null},{"text":"< 2.19.1-1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.16-2+deb13u2 | < 2.19.1-1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"lcms2","name":"lcms2","label":"lcms2","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/lcms2","purlType":"deb","versions":[{"text":"< 2.16-2ubuntu0.2","noFixRecorded":false,"fixedIn":null},{"text":"< 2.17-1ubuntu0.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.16-2ubuntu0.2 | < 2.17-1ubuntu0.2","eol":null,"hubHref":null},{"vendor":"littlecms","product":"little_cms_color_engine","name":"little cms color engine","label":"little_cms_color_engine","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 2.16, < 2.19","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 2.16, < 2.19","eol":null,"hubHref":"/vendor/littlecms/little_cms_color_engine"}],"affectedCount":3,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://github.com/mm2/Little-CMS/commit/6a686019825a89b715d16671f18d049523354176","label":"github.com/mm2/Little-CMS/commit/6a686019825a89b715d16671f18d049523354176","hostname":"github.com","tags":[]},{"url":"https://github.com/mm2/Little-CMS/compare/lcms2.18...lcms2.19","label":"github.com/mm2/Little-CMS/compare/lcms2.18...lcms2.19","hostname":"github.com","tags":[]},{"url":"https://www.openwall.com/lists/oss-security/2026/04/30/8","label":"www.openwall.com/lists/oss-security/2026/04/30/8","hostname":"www.openwall.com","tags":[]},{"url":"https://ubuntu.com/security/CVE-2026-42798","label":"ubuntu.com/security/CVE-2026-42798","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-42798","label":"www.cve.org/CVERecord?id=CVE-2026-42798","hostname":"www.cve.org","tags":["REPORT"]},{"url":"https://ubuntu.com/security/notices/USN-8250-1","label":"ubuntu.com/security/notices/USN-8250-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-42798","label":"security-tracker.debian.org/tracker/CVE-2026-42798","hostname":"security-tracker.debian.org","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":["OPENSUSE-SU-2026:21202-1","SUSE-SU-2026:22070-1","SUSE-SU-2026:22506-1","SUSE-SU-2026:23443-1"],"duplicates":[],"related":["OPENSUSE-SU-2026:21202-1","SUSE-SU-2026:22070-1","SUSE-SU-2026:22506-1","SUSE-SU-2026:23443-1","USN-8250-1"]},"timeline":[{"kind":"published","date":"2026-04-30T06:34:13.323Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-30T12:57:14.221Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":16,"level":"low","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T18:50:40.292Z","stale":false,"partial":false}}