{"schemaVersion":3,"id":"CVE-2023-51714","aliases":["SUSE-SU-2024:0063-1","SUSE-SU-2024:0138-1","UBUNTU-CVE-2023-51714","DEBIAN-CVE-2023-51714","openSUSE-SU-2024:13553-1","openSUSE-SU-2024:13555-1"],"status":"published","duplicateOf":null,"title":null,"description":"An issue was discovered in the HTTP2 implementation in Qt before 5.15.17, 6.x before 6.2.11, 6.3.x through 6.5.x before 6.5.4, and 6.6.x before 6.6.2. network/access/http2/hpacktable.cpp has an incorrect HPack integer overflow check.","dates":{"published":"2023-12-24T00:00:00.000Z","modified":"2026-10-08T21:14:06.368Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":9.8,"severity":"critical","version":"3.1","versionLabel":"v3.1","source":"NVD","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":"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":"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":0.00978,"percentile":0.61568,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.00978},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00978,"percentile":0.61568}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00978,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00978,"percentile":0.61568}]},"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":"qt6-base","name":"qt6-base","label":"qt6-base","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/qt6-base","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null},{"text":"< 6.4.2+dfsg-21","noFixRecorded":false,"fixedIn":null}],"versionsText":"All versions (No fix recorded) | < 6.4.2+dfsg-21","eol":null,"hubHref":null},{"vendor":"debian","product":"qtbase-opensource-src","name":"qtbase-opensource-src","label":"qtbase-opensource-src","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/qtbase-opensource-src","purlType":"deb","versions":[{"text":"< 5.15.8+dfsg-11+deb12u2","noFixRecorded":false,"fixedIn":null},{"text":"< 5.15.10+dfsg-6","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.15.8+dfsg-11+deb12u2 | < 5.15.10+dfsg-6","eol":null,"hubHref":null},{"vendor":"debian","product":"qtbase-opensource-src-gles","name":"qtbase-opensource-src-gles","label":"qtbase-opensource-src-gles","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/qtbase-opensource-src-gles","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null},{"text":"< 5.15.10+dfsg-4","noFixRecorded":false,"fixedIn":null}],"versionsText":"All versions (No fix recorded) | < 5.15.10+dfsg-4","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"qt6-base","name":"qt6-base","label":"qt6-base","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/qt6-base","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"qtbase-opensource-src","name":"qtbase-opensource-src","label":"qtbase-opensource-src","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/qtbase-opensource-src","purlType":"deb","versions":[{"text":"< 5.9.5+dfsg-0ubuntu2.6+esm2","noFixRecorded":false,"fixedIn":null},{"text":"< 5.12.8+dfsg-0ubuntu2.1+esm3","noFixRecorded":false,"fixedIn":null},{"text":"< 5.15.3+dfsg-2ubuntu0.2+esm3","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.9.5+dfsg-0ubuntu2.6+esm2 | < 5.12.8+dfsg-0ubuntu2.1+esm3 | < 5.15.3+dfsg-2ubuntu0.2+esm3","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"qtbase-opensource-src-gles","name":"qtbase-opensource-src-gles","label":"qtbase-opensource-src-gles","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/qtbase-opensource-src-gles","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"debian","product":"debian_linux","name":"debian linux","label":"debian_linux","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"10.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"10.0","eol":{"isEol":true,"eolDate":"2024-06-30T00:00:00.000Z","matchMethod":"cpe","cycle":{"name":"10","label":"10 (Buster)","eolFrom":"2024-06-30T00:00:00.000Z","isLts":false,"isMaintained":true,"latestVersion":"10.13"},"product":{"name":"debian","label":"Debian","category":"os"}},"hubHref":"/vendor/debian/debian_linux"},{"vendor":"qt","product":"qt","name":"qt","label":"qt","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 5.7, < 5.15.17","noFixRecorded":false,"fixedIn":null},{"text":"≥ 6.0.0, < 6.2.11","noFixRecorded":false,"fixedIn":null},{"text":"≥ 6.3.0, < 6.5.4","noFixRecorded":false,"fixedIn":null},{"text":"≥ 6.6.0, < 6.6.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 5.7, < 5.15.17 | ≥ 6.0.0, < 6.2.11 | ≥ 6.3.0, < 6.5.4 | ≥ 6.6.0, < 6.6.2","eol":{"isEol":null,"eolDate":null,"matchMethod":"cpe","cycle":null,"product":{"name":"qt","label":"Qt","category":"framework"}},"hubHref":"/vendor/qt/qt"},{"vendor":"opensuse","product":"libqt5-qtbase&distro=openSUSE Leap 15.5","name":"libqt5-qtbase","label":"libqt5-qtbase&distro=openSUSE Leap 15.5","ecosystem":"openSUSE","cpePart":null,"purl":"pkg:rpm/opensuse/libqt5-qtbase&distro=openSUSE Leap 15.5","purlType":"rpm","versions":[{"text":"< 5.15.8+kde185-150500.4.16.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.15.8+kde185-150500.4.16.1","eol":null,"hubHref":null},{"vendor":"opensuse","product":"libqt5-qtbase&distro=openSUSE Tumbleweed","name":"libqt5-qtbase","label":"libqt5-qtbase&distro=openSUSE Tumbleweed","ecosystem":"openSUSE","cpePart":null,"purl":"pkg:rpm/opensuse/libqt5-qtbase&distro=openSUSE Tumbleweed","purlType":"rpm","versions":[{"text":"< 5.15.12+kde147-1.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.15.12+kde147-1.1","eol":null,"hubHref":null},{"vendor":"opensuse","product":"qt6-base-docs&distro=openSUSE Leap 15.5","name":"qt6-base-docs","label":"qt6-base-docs&distro=openSUSE Leap 15.5","ecosystem":"openSUSE","cpePart":null,"purl":"pkg:rpm/opensuse/qt6-base-docs&distro=openSUSE Leap 15.5","purlType":"rpm","versions":[{"text":"< 6.4.2-150500.3.14.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 6.4.2-150500.3.14.1","eol":null,"hubHref":null},{"vendor":"opensuse","product":"qt6-base&distro=openSUSE Leap 15.5","name":"qt6-base","label":"qt6-base&distro=openSUSE Leap 15.5","ecosystem":"openSUSE","cpePart":null,"purl":"pkg:rpm/opensuse/qt6-base&distro=openSUSE Leap 15.5","purlType":"rpm","versions":[{"text":"< 6.4.2-150500.3.14.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 6.4.2-150500.3.14.1","eol":null,"hubHref":null},{"vendor":"opensuse","product":"qt6-base&distro=openSUSE Tumbleweed","name":"qt6-base","label":"qt6-base&distro=openSUSE Tumbleweed","ecosystem":"openSUSE","cpePart":null,"purl":"pkg:rpm/opensuse/qt6-base&distro=openSUSE Tumbleweed","purlType":"rpm","versions":[{"text":"< 6.6.1-5.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 6.6.1-5.1","eol":null,"hubHref":null},{"vendor":"suse","product":"libqt5-qtbase&distro=SUSE Linux Enterprise Module for Basesystem 15 SP5","name":"libqt5-qtbase","label":"libqt5-qtbase&distro=SUSE Linux Enterprise Module for Basesystem 15 SP5","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/libqt5-qtbase&distro=SUSE Linux Enterprise Module for Basesystem 15 SP5","purlType":"rpm","versions":[{"text":"< 5.15.8+kde185-150500.4.16.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.15.8+kde185-150500.4.16.1","eol":null,"hubHref":null},{"vendor":"suse","product":"libqt5-qtbase&distro=SUSE Linux Enterprise Module for Desktop Applications 15 SP5","name":"libqt5-qtbase","label":"libqt5-qtbase&distro=SUSE Linux Enterprise Module for Desktop Applications 15 SP5","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/libqt5-qtbase&distro=SUSE Linux Enterprise Module for Desktop Applications 15 SP5","purlType":"rpm","versions":[{"text":"< 5.15.8+kde185-150500.4.16.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.15.8+kde185-150500.4.16.1","eol":null,"hubHref":null},{"vendor":"suse","product":"qt6-base&distro=SUSE Linux Enterprise Module for Desktop Applications 15 SP5","name":"qt6-base","label":"qt6-base&distro=SUSE Linux Enterprise Module for Desktop Applications 15 SP5","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/qt6-base&distro=SUSE Linux Enterprise Module for Desktop Applications 15 SP5","purlType":"rpm","versions":[{"text":"< 6.4.2-150500.3.14.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 6.4.2-150500.3.14.1","eol":null,"hubHref":null},{"vendor":"suse","product":"qt6-base&distro=SUSE Linux Enterprise Module for Package Hub 15 SP5","name":"qt6-base","label":"qt6-base&distro=SUSE Linux Enterprise Module for Package Hub 15 SP5","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/qt6-base&distro=SUSE Linux Enterprise Module for Package Hub 15 SP5","purlType":"rpm","versions":[{"text":"< 6.4.2-150500.3.14.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 6.4.2-150500.3.14.1","eol":null,"hubHref":null}],"affectedCount":17,"eol":{"hasEol":true,"count":1},"references":[{"url":"https://codereview.qt-project.org/c/qt/qtbase/+/524864","label":"codereview.qt-project.org/c/qt/qtbase/+/524864","hostname":"codereview.qt-project.org","tags":["REPORT","Patch","Product"]},{"url":"https://codereview.qt-project.org/c/qt/qtbase/+/524865/3","label":"codereview.qt-project.org/c/qt/qtbase/+/524865/3","hostname":"codereview.qt-project.org","tags":["REPORT","Patch","Product"]},{"url":"https://lists.debian.org/debian-lts-announce/2024/04/msg00027.html","label":"lists.debian.org/debian-lts-announce/2024/04/msg00027.html","hostname":"lists.debian.org","tags":["Mailing List","Third Party Advisory"]},{"url":"https://www.suse.com/support/update/announcement/2024/suse-su-20240063-1/","label":"www.suse.com/support/update/announcement/2024/suse-su-20240063-1/","hostname":"www.suse.com","tags":["Advisory"]},{"url":"https://bugzilla.suse.com/1218413","label":"bugzilla.suse.com/1218413","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://www.suse.com/security/cve/CVE-2023-51714","label":"www.suse.com/security/cve/CVE-2023-51714","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/support/update/announcement/2024/suse-su-20240138-1/","label":"www.suse.com/support/update/announcement/2024/suse-su-20240138-1/","hostname":"www.suse.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2023-51714","label":"ubuntu.com/security/CVE-2023-51714","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-51714","label":"www.cve.org/CVERecord?id=CVE-2023-51714","hostname":"www.cve.org","tags":["REPORT"]},{"url":"https://ubuntu.com/security/notices/USN-8076-1","label":"ubuntu.com/security/notices/USN-8076-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2023-51714","label":"security-tracker.debian.org/tracker/CVE-2023-51714","hostname":"security-tracker.debian.org","tags":["Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-51714","label":"nvd.nist.gov/vuln/detail/CVE-2023-51714","hostname":"nvd.nist.gov","tags":["Oval","Advisory"]}],"lineage":{"upstream":[],"downstream":["DLA-3805-1","MGASA-2025-0046","RHSA-2024:2276","RHSA-2024:3056","SUSE-SU-2024:2890-1","SUSE-SU-2024:2946-1"],"duplicates":[],"related":["SUSE-SU-2024:2890-1","SUSE-SU-2024:2946-1","USN-8076-1"]},"timeline":[{"kind":"published","date":"2023-12-24T00:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-10-08T21:14:06.368Z","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":"2026-10-19T22:46:15.422Z","stale":false,"partial":false}}