{"schemaVersion":3,"id":"CVE-2026-8631","aliases":["UBUNTU-CVE-2026-8631","DEBIAN-CVE-2026-8631"],"status":"published","duplicateOf":null,"title":null,"description":"A potential security vulnerability has been identified in the HP Linux Imaging and Printing Software. This potential vulnerability may allow escalation of privileges and/or arbitrary code execution via an integer overflow in the hpcups processing path when handling crafted print data.","dates":{"published":"2026-05-20T20:11:14.070Z","modified":"2026-08-04T12:07:05.905Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":9.8,"severity":"critical","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"4.0","versionLabel":"v4.0","source":"CVE.org","score":9.3,"severity":"critical","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":9.8,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"4.0","versionLabel":"v4.0","source":"OSV · Ubuntu","score":9.3,"severity":"critical","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","exploitability":null,"impact":null,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Ubuntu","score":9.8,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":10,"impact":9.8,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Debian","score":9.8,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":10,"impact":9.8,"computed":true},{"version":"4.0","versionLabel":"v4.0","source":"NVD","score":9.3,"severity":"critical","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":9.8,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.01139,"percentile":0.66106,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":-0.6749999999999999,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.01814},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.01814,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.01814,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.01814,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.01814,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.01814,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.01814,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01814,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01814,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01814,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01814,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01139,"percentile":0.66106}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.01814,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01814,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01814,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01814,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01814,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01139,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01139,"percentile":0.66106}]},"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-122","name":"Heap-based Buffer Overflow","description":"A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().","type":"weakness","status":"Draft","abstraction":"Variant","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/122.html"},{"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":"hplip","name":"hplip","label":"hplip","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/hplip","purlType":"deb","versions":[{"text":"< 3.22.10+dfsg0-2+deb12u1","noFixRecorded":false,"fixedIn":null},{"text":"< 3.22.10+dfsg0-8.1+deb13u1","noFixRecorded":false,"fixedIn":null},{"text":"< 3.26.4+dfsg0-1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.22.10+dfsg0-2+deb12u1 | < 3.22.10+dfsg0-8.1+deb13u1 | < 3.26.4+dfsg0-1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"hplip","name":"hplip","label":"hplip","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/hplip","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null},{"text":"< 3.21.12+dfsg0-1ubuntu0.1","noFixRecorded":false,"fixedIn":null},{"text":"< 3.23.12+dfsg0-0ubuntu5.1","noFixRecorded":false,"fixedIn":null},{"text":"< 3.24.4+dfsg0-0ubuntu5.2","noFixRecorded":false,"fixedIn":null},{"text":"< 3.24.4+dfsg0-0ubuntu8.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"All versions (No fix recorded) | < 3.21.12+dfsg0-1ubuntu0.1 | < 3.23.12+dfsg0-0ubuntu5.1 | < 3.24.4+dfsg0-0ubuntu5.2 | < 3.24.4+dfsg0-0ubuntu8.1","eol":null,"hubHref":null},{"vendor":"hp inc","product":"hp linux imaging and printing software","name":"HP Linux Imaging and Printing Software","label":"hp linux imaging and printing software","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 3.26.4","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.26.4","eol":null,"hubHref":"/vendor/hp_inc/hp_linux_imaging_and_printing_software"},{"vendor":"hp","product":"linux_imaging_and_printing","name":"linux imaging and printing","label":"linux_imaging_and_printing","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 3.26.4","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.26.4","eol":null,"hubHref":"/vendor/hp/linux_imaging_and_printing"}],"affectedCount":4,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://support.hp.com/us-en/document/ish_14942099-14942126-16/hpsbpi04118","label":"support.hp.com/us-en/document/ish_14942099-14942126-16/hpsbpi04118","hostname":"support.hp.com","tags":["REPORT","Vendor Advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-8631","label":"access.redhat.com/security/cve/CVE-2026-8631","hostname":"access.redhat.com","tags":["VDB Entry","X Refsource REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2480300","label":"bugzilla.redhat.com/show_bug.cgi?id=2480300","hostname":"bugzilla.redhat.com","tags":["Issue Tracking","X Refsource REDHAT"]},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-8631.json","label":"security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-8631.json","hostname":"security.access.redhat.com","tags":["X Sadp Csaf Vex"]},{"url":"https://access.redhat.com/errata/RHSA-2026:48606","label":"access.redhat.com/errata/RHSA-2026:48606","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:26228","label":"access.redhat.com/errata/RHSA-2026:26228","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:26335","label":"access.redhat.com/errata/RHSA-2026:26335","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:48960","label":"access.redhat.com/errata/RHSA-2026:48960","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:48961","label":"access.redhat.com/errata/RHSA-2026:48961","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:48959","label":"access.redhat.com/errata/RHSA-2026:48959","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:48603","label":"access.redhat.com/errata/RHSA-2026:48603","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:48586","label":"access.redhat.com/errata/RHSA-2026:48586","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:48171","label":"access.redhat.com/errata/RHSA-2026:48171","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:26297","label":"access.redhat.com/errata/RHSA-2026:26297","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://ubuntu.com/security/CVE-2026-8631","label":"ubuntu.com/security/CVE-2026-8631","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-8631","label":"www.cve.org/CVERecord?id=CVE-2026-8631","hostname":"www.cve.org","tags":["REPORT"]},{"url":"https://ubuntu.com/security/notices/USN-8483-1","label":"ubuntu.com/security/notices/USN-8483-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-8631","label":"security-tracker.debian.org/tracker/CVE-2026-8631","hostname":"security-tracker.debian.org","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":["MGASA-2026-0363","OPENSUSE-SU-2026:10860-1","RHSA-2026:26228","RHSA-2026:26297","RHSA-2026:26335","RHSA-2026:48171","RHSA-2026:48586","RHSA-2026:48603","RHSA-2026:48606","RHSA-2026:48959","RHSA-2026:48960","RHSA-2026:48961","SUSE-SU-2026:2380-1","USN-8483-1"],"duplicates":[],"related":["OPENSUSE-SU-2026:10860-1","SUSE-SU-2026:2380-1","USN-8483-1"]},"timeline":[{"kind":"published","date":"2026-05-20T20:11:14.070Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-08-04T12:07:05.905Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":70,"level":"high","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T11:51:47.746Z","stale":false,"partial":false}}