{"id":"CVE-2021-47798","aliases":["EUVD-2026-3031","GHSA-489q-8735-fm7w"],"status":"published","title":"NoteBurner 2.35 - Denial Of Service (DoS) (PoC)","description":"NoteBurner 2.35 contains a buffer overflow vulnerability in the license code input field that allows attackers to crash the application. Attackers can generate a 6000-byte payload and paste it into the 'Name' and 'Code' fields to trigger an application crash.","severity":{"version":"4.0","score":6.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00425,"percentile":0.37063,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-120"],"published":"2026-01-15T23:25:45Z","modified":"2026-06-17T04:18:30Z","products":[{"vendor":"noteburner","product":"noteburner"}],"references":[{"url":"https://www.exploit-db.com/exploits/50154","tags":["exploit"]},{"url":"https://www.noteburner.com/","tags":["product"]},{"url":"https://www.vulncheck.com/advisories/noteburner-denial-of-service-dos-poc","tags":["third-party-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-47798"},{"url":"https://www.noteburner.com"},{"url":"https://github.com/advisories/GHSA-489q-8735-fm7w"}],"sources":{"cve":[{"id":"CVE-2021-47798","title":"NoteBurner 2.35 - Denial Of Service (DoS) (PoC)","description":"NoteBurner 2.35 contains a buffer overflow vulnerability in the license code input field that allows attackers to crash the application. Attackers can generate a 6000-byte payload and paste it into the 'Name' and 'Code' fields to trigger an application crash.","status":"published","published":"2026-01-15T23:25:45.745Z","modified":"2026-01-16T15:58:23.327Z","cvss":[{"version":"4.0","score":6.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:32:55.905855Z"}],"euvd":[{"id":"EUVD-2026-3031","description":"NoteBurner 2.35 contains a buffer overflow vulnerability in the license code input field that allows attackers to crash the application. Attackers can generate a 6000-byte payload and paste it into the 'Name' and 'Code' fields to trigger an application crash.","status":"published","published":"2026-01-15T23:25:45Z","modified":"2026-01-16T15:58:23Z","cvss":[{"version":"4.0","score":6.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T19:48:50.882066Z"}],"ghsa":[{"id":"GHSA-489q-8735-fm7w","title":"NoteBurner 2.35 contains a buffer overflow vulnerability in the license code input field that...","description":"NoteBurner 2.35 contains a buffer overflow vulnerability in the license code input field that allows attackers to crash the application. Attackers can generate a 6000-byte payload and paste it into the 'Name' and 'Code' fields to trigger an application crash.","status":"published","published":"2026-01-16T00:30:55Z","modified":"2026-01-16T00:31:02Z","cvss":[{"version":"4.0","score":6.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/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","level":"medium"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T15:05:38.149378Z"}],"nvd":[{"id":"CVE-2021-47798","description":"NoteBurner 2.35 contains a buffer overflow vulnerability in the license code input field that allows attackers to crash the application. Attackers can generate a 6000-byte payload and paste it into the 'Name' and 'Code' fields to trigger an application crash.","status":"published","published":"2026-01-16T00:16:24.14Z","modified":"2026-06-17T04:18:30.833Z","cvss":[{"version":"4.0","score":6.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/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","level":"medium","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:07:09.005706Z"}]}}