{"id":"CVE-2020-15261","url":"https://www.cyber-defence.io/tools/cve/CVE-2020-15261","generatedAt":"2026-11-05T01:56:32.302Z","title":"On Windows the Veyon Service before version 4.4.2 contains an unquoted service path vulnerability, allowing locally authenticated users with administrative privileges to run malicious executables with LocalSystem privileges.","description":"On Windows the Veyon Service before version 4.4.2 contains an unquoted service path vulnerability, allowing locally authenticated users with administrative privileges to run malicious executables with LocalSystem privileges. Since Veyon users (both students and teachers) usually don't have administrative privileges, this vulnerability is only dangerous in anyway unsafe setups. The problem has been fixed in version 4.4.2. As a workaround, the exploitation of the vulnerability can be prevented by revoking administrative privileges from all potentially untrustworthy users.","published":"2020-10-19T22:15:13.000Z","lastModified":"2026-06-17T02:56:23.000Z","status":"Modified","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":6.7,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-428"],"affected":["veyon/veyon"],"epss":{"score":0.11255,"percentile":0.95972,"date":"2026-11-03","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":false,"firstPublished":"2021-06-01","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":49925,"kind":"exploit","title":"Veyon 4.4.1 - 'VeyonService' Unquoted Service Path","url":"https://www.exploit-db.com/exploits/49925","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/windows/local/49925.txt","file":"exploits/windows/local/49925.txt","published":"2021-06-01","added":"2021-06-01","updated":"2021-06-01","author":"Víctor García","type":"local","platform":"windows","port":null,"verified":false,"codes":["CVE-2020-15261"],"tags":null,"aliases":null,"applicationUrl":"http://www.exploit-db.comveyon-4.4.1.0-win64-setup.exe","screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 11.3%, higher than 96% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://packetstormsecurity.com/files/162873/Veyon-4.4.1-Unquoted-Service-Path.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"security-advisories@github.com"},{"url":"https://github.com/veyon/veyon/commit/f231ec511b9a09f43f49b2c7bb7c60b8046276b1","tags":["Patch","Third Party Advisory"],"source":"security-advisories@github.com"},{"url":"https://github.com/veyon/veyon/issues/657","tags":["Issue Tracking","Third Party Advisory"],"source":"security-advisories@github.com"},{"url":"https://github.com/veyon/veyon/security/advisories/GHSA-c8cc-x786-hqqp","tags":["Third Party Advisory"],"source":"security-advisories@github.com"},{"url":"https://www.exploit-db.com/exploits/48246","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"security-advisories@github.com"},{"url":"https://www.exploit-db.com/exploits/49925","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"security-advisories@github.com"},{"url":"http://packetstormsecurity.com/files/162873/Veyon-4.4.1-Unquoted-Service-Path.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/veyon/veyon/commit/f231ec511b9a09f43f49b2c7bb7c60b8046276b1","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/veyon/veyon/issues/657","tags":["Issue Tracking","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/veyon/veyon/security/advisories/GHSA-c8cc-x786-hqqp","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/48246","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/49925","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-15261","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."}