{"id":"CVE-2026-1788","aliases":["EUVD-2026-5215","GHSA-xccv-2cc3-7px5","ROOT-OS-UBUNTU-2204-CVE-2026-1788","UBUNTU-CVE-2026-1788"],"status":"published","title":"Buffer Overflow in Xquic Server","description":": Out-of-bounds Write vulnerability in Xquic Project Xquic Server xquic on Linux (QUIC protocol implementation, packet processing module modules) allows : Buffer Manipulation.This issue affects Xquic Server: through 1.8.3.","severity":{"version":"4.0","score":6.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/AU:Y/R:U/RE:M/U:Amber","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00425,"percentile":0.37034,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-787"],"published":"2026-02-03T03:22:48Z","modified":"2026-11-06T14:17:11Z","fixes":[{"ecosystem":"Root:Ubuntu:22.04","package":"linux","fixed_in":["5.15.0-203.213.aikido.119"],"sources":["osv"]},{"ecosystem":"Root:Ubuntu:22.04","package":"rootio-linux","fixed_in":["5.15.0-203.213.aikido.119"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Root:Ubuntu:22.04","package":"linux","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-203.213.aikido.119"}]}]},{"source":"osv","ecosystem":"Root:Ubuntu:22.04","package":"rootio-linux","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-203.213.aikido.119"}]}]}],"products":[{"vendor":"xquic project","product":"xquic server"}],"references":[{"url":"https://github.com/alibaba/xquic","tags":["package","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-1788","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-xccv-2cc3-7px5"},{"url":"https://github.com","tags":["web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/1xxx/CVE-2026-1788.json","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-1788","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-1788","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-1788","title":"Buffer Overflow in Xquic Server","description":": Out-of-bounds Write vulnerability in Xquic Project Xquic Server xquic on Linux (QUIC protocol implementation, packet processing module modules) allows : Buffer Manipulation.This issue affects Xquic Server: through 1.8.3.","status":"published","published":"2026-02-03T03:22:48.256Z","modified":"2026-02-03T17:18:06.15Z","cvss":[{"version":"4.0","score":6.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/AU:Y/R:U/RE:M/U:Amber","level":"medium","assessor":"cna"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:20:01.271368Z"}],"euvd":[{"id":"EUVD-2026-5215","description":": Out-of-bounds Write vulnerability in Xquic Project Xquic Server xquic on Linux (QUIC protocol implementation, packet processing module modules) allows : Buffer Manipulation.This issue affects Xquic Server: through 1.8.3.","status":"published","published":"2026-02-03T03:22:48Z","modified":"2026-02-03T17:18:06Z","cvss":[{"version":"4.0","score":6.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/AU:Y/R:U/RE:M/U:Amber","level":"medium"}],"updated_at":"2026-11-02T19:48:44.612436Z"}],"ghsa":[{"id":"GHSA-xccv-2cc3-7px5","title":": Out-of-bounds Write vulnerability in Xquic Project Xquic Server xquic on Linux (QUIC protocol...","description":": Out-of-bounds Write vulnerability in Xquic Project Xquic Server xquic on Linux (QUIC protocol implementation, packet processing module modules) allows : Buffer Manipulation.This issue affects Xquic Server: through 1.8.3.","status":"published","published":"2026-02-03T06:31:04Z","modified":"2026-02-03T06:31:05Z","cvss":[{"version":"4.0","score":6.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/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:Y/R:U/V:X/RE:M/U:Amber","level":"medium"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T15:06:00.828476Z"}],"nvd":[{"id":"CVE-2026-1788","description":": Out-of-bounds Write vulnerability in Xquic Project Xquic Server xquic on Linux (QUIC protocol implementation, packet processing module modules) allows : Buffer Manipulation.This issue affects Xquic Server: through 1.8.3.","status":"published","published":"2026-02-03T04:15:56.19Z","modified":"2026-06-17T10:16:31.227Z","cvss":[{"version":"4.0","score":6.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/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:Y/R:U/V:X/RE:M/U:Amber","level":"medium","assessor":"secondary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:12:05.149641Z"}],"osv":[{"id":"CVE-2026-1788","title":"Buffer Overflow in Xquic Server","description":": Out-of-bounds Write vulnerability in Xquic Project Xquic Server xquic on Linux (QUIC protocol implementation, packet processing module modules) allows : Buffer Manipulation.This issue affects Xquic Server: through 1.8.3.","status":"published","published":"2026-02-03T03:22:48.256Z","modified":"2026-10-28T10:50:25.116608577Z","cvss":[{"version":"4.0","score":6.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/AU:Y/R:U/RE:M/U:Amber","level":"medium"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T15:44:58.024074Z"},{"id":"UBUNTU-CVE-2026-1788","description":": Out-of-bounds Write vulnerability in Xquic Project Xquic Server xquic on Linux (QUIC protocol implementation, packet processing module modules) allows : Buffer Manipulation.This issue affects Xquic Server: through 1.8.3.","status":"withdrawn","published":"2026-02-03T04:15:00Z","modified":"2026-10-21T23:02:25.220287937Z","cvss":[{"version":"4.0","score":6.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/AU:Y/R:U/RE:M/U:Amber","level":"medium"}],"updated_at":"2026-11-02T16:56:01.334185Z"},{"id":"ROOT-OS-UBUNTU-2204-CVE-2026-1788","title":"CVE-2026-1788 in linux - Patched by Root","description":"Root has patched CVE-2026-1788 in the linux package for Root:Ubuntu:22.04. Multiple fixed versions available.","status":"published","published":"2026-11-06T13:52:25Z","modified":"2026-11-06T14:17:11.741992293Z","updated_at":"2026-11-06T14:57:22.237547Z"}]}}