{"id":"CVE-2020-37166","title":"AbsoluteTelnet 11.12 - 'SSH2/username' Denial of Service","summary":"AbsoluteTelnet 11.12 contains a denial of service vulnerability in the SSH2 username input field that allows local attackers to crash the application. Attackers can overwrite the username field with a 1000-byte buffer, causing the applic…","severity":"medium","cvss":6.2,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cvssSource":"cna","cwe":["CWE-120"],"vendor":"Celestial Software","product":"AbsoluteTelnet","affected":["AbsoluteTelnet 11.12"],"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-02-17T16:54:46.369506Z"},"exploitAvailable":true,"published":"2026-02-06","updated":"2026-10-01","sourceUpdated":"2026-10-01T15:19:36.986Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2020-37166","references":[{"url":"https://www.exploit-db.com/exploits/48010","label":"ExploitDB-48010"},{"url":"https://www.celestialsoftware.net/","label":"Vendor Homepage"},{"url":"https://www.vulncheck.com/advisories/absolutetelnet-sshusername-denial-of-service","label":"VulnCheck Advisory: AbsoluteTelnet 11.12 - 'SSH2/username' Denial of Service"}],"tags":["cve.org","exploit-available"],"epss":0.00227,"epssPercentile":0.12128,"ingestedAt":"2026-10-01T15:48:17.877Z","slug":"CVE-2020-37166","body":"## Overview\n\nAbsoluteTelnet 11.12 contains a denial of service vulnerability in the SSH2 username input field that allows local attackers to crash the application. Attackers can overwrite the username field with a 1000-byte buffer, causing the application to become unresponsive and terminate.\n\n## Affected\n\n- `AbsoluteTelnet 11.12`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":46,"depthScoreParts":{"impact":34.1,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[]}