{"id":"CVE-2026-4746","aliases":["AZL-80837","AZL-80840","EUVD-2026-14745","GHSA-ch4h-8w5c-3g8g"],"status":"published","title":"Heap Buffer Over-Write Vulenrabilty in timeplus-io/proton","description":"Out-of-bounds Write vulnerability in timeplus-io proton (base/poco/Foundation/src‎ modules). This vulnerability is associated with program files inflate.C.\n\nThis issue affects proton: before 1.6.16.","severity":{"version":"4.0","score":10,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/S:N/AU:Y/R:U/V:C/RE:L/U:Amber","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00263,"percentile":0.18157,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2026-03-24T03:28:20Z","modified":"2026-11-05T05:36:30Z","affected":[{"source":"osv","ecosystem":"Azure Linux:3","package":"fltk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"1.3.8-1"}]}]},{"source":"osv","ecosystem":"Azure Linux:3","package":"gpsbabel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"1.8.0-4"}]}]}],"products":[{"vendor":"timeplus-io","product":"proton"}],"references":[{"url":"https://github.com/timeplus-io/proton/pull/943","tags":["patch","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4746","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-ch4h-8w5c-3g8g"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/4xxx/CVE-2026-4746.json","tags":["advisory"]},{"url":"https://github.com/timeplus-io/proton","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-4746","title":"Heap Buffer Over-Write Vulenrabilty in timeplus-io/proton","description":"Out-of-bounds Write vulnerability in timeplus-io proton (base/poco/Foundation/src‎ modules). This vulnerability is associated with program files inflate.C.\n\nThis issue affects proton: before 1.6.16.","status":"published","published":"2026-03-24T03:28:20.753Z","modified":"2026-03-24T18:25:06.762Z","cvss":[{"version":"4.0","score":10,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/S:N/AU:Y/R:U/V:C/RE:L/U:Amber","level":"critical","assessor":"cna"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:19:59.761005Z"}],"euvd":[{"id":"EUVD-2026-14745","description":"Out-of-bounds Write vulnerability in timeplus-io proton (base/poco/Foundation/src‎ modules). This vulnerability is associated with program files inflate.C.\n\nThis issue affects proton: before 1.6.16.","status":"published","published":"2026-03-24T03:28:20Z","modified":"2026-03-24T18:25:06Z","cvss":[{"version":"4.0","score":10,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/S:N/AU:Y/R:U/V:C/RE:L/U:Amber","level":"critical"}],"updated_at":"2026-11-02T19:25:29.933437Z"}],"ghsa":[{"id":"GHSA-ch4h-8w5c-3g8g","title":"Out-of-bounds Write vulnerability in timeplus-io proton (base/poco/Foundation/src‎ modules). This...","description":"Out-of-bounds Write vulnerability in timeplus-io proton (base/poco/Foundation/src‎ modules). This vulnerability is associated with program files inflate.C.\n\nThis issue affects proton: before 1.6.16.","status":"published","published":"2026-03-24T06:31:14Z","modified":"2026-03-24T06:31:25Z","cvss":[{"version":"4.0","score":10,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/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:N/AU:Y/R:U/V:C/RE:L/U:Amber","level":"critical"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T15:06:49.419052Z"}],"nvd":[{"id":"CVE-2026-4746","description":"Out-of-bounds Write vulnerability in timeplus-io proton (base/poco/Foundation/src‎ modules). This vulnerability is associated with program files inflate.C.\n\nThis issue affects proton: before 1.6.16.","status":"published","published":"2026-03-24T05:16:25.937Z","modified":"2026-06-17T10:57:09.893Z","cvss":[{"version":"4.0","score":10,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/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:N/AU:Y/R:U/V:C/RE:L/U:Amber","level":"critical","assessor":"secondary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:12:10.568062Z"}],"osv":[{"id":"CVE-2026-4746","title":"Heap Buffer Over-Write Vulenrabilty in timeplus-io/proton","description":"Out-of-bounds Write vulnerability in timeplus-io proton (base/poco/Foundation/src‎ modules). This vulnerability is associated with program files inflate.C.\n\nThis issue affects proton: before 1.6.16.","status":"published","published":"2026-03-24T03:28:20.753Z","modified":"2026-10-28T02:30:30.485423088Z","cvss":[{"version":"4.0","score":10,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/S:N/AU:Y/R:U/V:C/RE:L/U:Amber","level":"critical"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T15:45:06.231145Z"},{"id":"AZL-80837","title":"CVE-2026-4746 affecting package fltk 1.3.8-1","description":"Out-of-bounds Write vulnerability in timeplus-io proton (base/poco/Foundation/src‎ modules). This vulnerability is associated with program files inflate.C.\n\nThis issue affects proton: before 1.6.16.","status":"published","published":"2026-03-24T05:16:25Z","modified":"2026-11-05T05:36:30Z","updated_at":"2026-11-05T16:41:24.800038Z"},{"id":"AZL-80840","title":"CVE-2026-4746 affecting package gpsbabel 1.8.0-4","description":"Out-of-bounds Write vulnerability in timeplus-io proton (base/poco/Foundation/src‎ modules). This vulnerability is associated with program files inflate.C.\n\nThis issue affects proton: before 1.6.16.","status":"published","published":"2026-03-24T05:16:25Z","modified":"2026-11-05T05:36:30Z","updated_at":"2026-11-05T16:41:24.800038Z"}]}}