{"id":"CVE-2020-17525","url":"https://www.cyber-defence.io/tools/cve/CVE-2020-17525","generatedAt":"2026-11-05T01:35:25.835Z","title":"Subversion's mod_authz_svn module will crash if the server is using in-repository authz rules with the AuthzSVNReposRelativeAccessFile option and a client sends a request for a non-existing repository URL.","description":"Subversion's mod_authz_svn module will crash if the server is using in-repository authz rules with the AuthzSVNReposRelativeAccessFile option and a client sends a request for a non-existing repository URL. This can lead to disruption for users of the service. This issue was fixed in mod_dav_svn+mod_authz_svn servers 1.14.1 and mod_dav_svn+mod_authz_svn servers 1.10.7","published":"2021-03-17T10:15:12.000Z","lastModified":"2026-06-17T02:59:05.000Z","status":"Modified","sourceIdentifier":"security@apache.org","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-476"],"affected":["apache/subversion","debian/debian linux"],"epss":{"score":0.40075,"percentile":0.98635,"date":"2026-11-03","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 40.1%, higher than 99% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"https://lists.debian.org/debian-lts-announce/2021/05/msg00000.html","tags":["Mailing List","Third Party Advisory"],"source":"security@apache.org"},{"url":"https://subversion.apache.org/security/CVE-2020-17525-advisory.txt","tags":["Exploit","Patch","Vendor Advisory"],"source":"security@apache.org"},{"url":"https://lists.debian.org/debian-lts-announce/2021/05/msg00000.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://subversion.apache.org/security/CVE-2020-17525-advisory.txt","tags":["Exploit","Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-17525","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."}