{"id":"CVE-2020-26130","url":"https://www.cyber-defence.io/tools/cve/CVE-2020-26130","generatedAt":"2026-10-27T23:43:40.070Z","title":"Due to insufficient access restrictions in the default installation directory, an attacker can elevate privileges by replacing the OpenTFTPServerMT.exe or the OpenTFTPServerSP.exe binary.","description":"Issues were discovered in Open TFTP Server multithreaded 1.66 and Open TFTP Server single port 1.66. Due to insufficient access restrictions in the default installation directory, an attacker can elevate privileges by replacing the OpenTFTPServerMT.exe or the OpenTFTPServerSP.exe binary.","published":"2020-10-28T18:15:13.000Z","lastModified":"2026-06-17T03:07:39.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-732"],"affected":["open tftp server project/open tftp server"],"epss":{"score":0.00444,"percentile":0.38393,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.44%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/OffensiveOceloot/advisories/blob/main/CVE-2020-26130.md","source":"cve@mitre.org"},{"url":"https://github.com/an0ry/advisories","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://sourceforge.net/projects/tftp-server/","tags":["Product"],"source":"cve@mitre.org"},{"url":"https://github.com/OffensiveOceloot/advisories/blob/main/CVE-2020-26130.md","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/an0ry/advisories","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://sourceforge.net/projects/tftp-server/","tags":["Product"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-26130","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}