{"id":"CVE-2025-52939","aliases":["AZL-64404","EUVD-2025-18873","GHSA-hhj4-3c38-ppmf"],"status":"published","title":"Potential heap-buffer overflow vulnerability in NotepadNext","description":"Out-of-bounds Write vulnerability in dail8859 NotepadNext (src/lua/src modules). This vulnerability is associated with program files ldebug.C, lvm.C.\n\nThis issue affects NotepadNext: through v0.11.","severity":{"version":"4.0","score":9.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/S:N/AU:Y/R:U/V:C/RE:M/U:Red","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00175,"percentile":0.07033,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-787"],"published":"2025-06-23T09:26:56Z","modified":"2026-10-28T11:02:01Z","fixes":[{"ecosystem":"Azure Linux:2","package":"ceph","fixed_in":["16.2.10-8"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Azure Linux:2","package":"ceph","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"16.2.10-8"}]}]}],"products":[{"vendor":"dail8859","product":"notepadnext"}],"references":[{"url":"https://github.com/dail8859/NotepadNext/pull/757/files","tags":["patch","third-party-advisory","fix"]},{"url":"https://github.com/dail8859/NotepadNext/commit/3e928d91b8fc8bb5c77801ee8652f41e98d12571","tags":["patch","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-52939","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-hhj4-3c38-ppmf"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/52xxx/CVE-2025-52939.json","tags":["advisory"]},{"url":"https://github.com/dail8859/NotepadNext","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2025-52939","title":"Potential heap-buffer overflow vulnerability in NotepadNext","description":"Out-of-bounds Write vulnerability in dail8859 NotepadNext (src/lua/src modules). This vulnerability is associated with program files ldebug.C, lvm.C.\n\nThis issue affects NotepadNext: through v0.11.","status":"published","published":"2025-06-23T09:26:56.917Z","modified":"2025-06-23T12:34:13.199Z","cvss":[{"version":"4.0","score":9.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/S:N/AU:Y/R:U/V:C/RE:M/U:Red","level":"critical","assessor":"cna"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:32:31.309974Z"}],"euvd":[{"id":"EUVD-2025-18873","description":"Out-of-bounds Write vulnerability in dail8859 NotepadNext (src/lua/src modules). This vulnerability is associated with program files ldebug.C, lvm.C.\n\nThis issue affects NotepadNext: through v0.11.","status":"published","published":"2025-06-23T09:26:56Z","modified":"2025-06-23T12:34:13Z","cvss":[{"version":"4.0","score":9.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/S:N/AU:Y/R:U/V:C/RE:M/U:Red","level":"critical"}],"updated_at":"2026-11-02T20:32:18.218874Z"}],"ghsa":[{"id":"GHSA-hhj4-3c38-ppmf","title":"Out-of-bounds Write vulnerability in dail8859 NotepadNext (src/lua/src modules). This...","description":"Out-of-bounds Write vulnerability in dail8859 NotepadNext (src/lua/src modules). This vulnerability is associated with program files ldebug.C, lvm.C.\n\nThis issue affects NotepadNext: through v0.11.","status":"published","published":"2025-06-23T21:31:56Z","modified":"2025-06-23T21:32:02Z","cvss":[{"version":"4.0","score":9.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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:N/AU:Y/R:U/V:C/RE:M/U:Red","level":"critical"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T15:02:48.872885Z"}],"nvd":[{"id":"CVE-2025-52939","description":"Out-of-bounds Write vulnerability in dail8859 NotepadNext (src/lua/src modules). This vulnerability is associated with program files ldebug.C, lvm.C.\n\nThis issue affects NotepadNext: through v0.11.","status":"published","published":"2025-06-23T10:15:28.007Z","modified":"2026-06-17T09:37:18.437Z","cvss":[{"version":"4.0","score":9.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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:N/AU:Y/R:U/V:C/RE:M/U:Red","level":"critical","assessor":"secondary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:11:14.091082Z"}],"osv":[{"id":"CVE-2025-52939","title":"Potential heap-buffer overflow vulnerability in NotepadNext","description":"Out-of-bounds Write vulnerability in dail8859 NotepadNext (src/lua/src modules). This vulnerability is associated with program files ldebug.C, lvm.C.\n\nThis issue affects NotepadNext: through v0.11.","status":"published","published":"2025-06-23T09:26:56.917Z","modified":"2026-10-28T11:02:01.648653906Z","cvss":[{"version":"4.0","score":9.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/S:N/AU:Y/R:U/V:C/RE:M/U:Red","level":"critical"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T15:44:50.45326Z"},{"id":"AZL-64404","title":"CVE-2025-52939 affecting package ceph for versions less than 16.2.10-8","description":"Out-of-bounds Write vulnerability in dail8859 NotepadNext (src/lua/src modules). This vulnerability is associated with program files ldebug.C, lvm.C.\n\nThis issue affects NotepadNext: through v0.11.","status":"published","published":"2025-06-23T10:15:28Z","modified":"2026-04-21T04:32:24.326061Z","updated_at":"2026-11-02T15:28:08.076947Z"}]}}