{"id":"CVE-2011-4895","url":"https://www.cyber-defence.io/tools/cve/CVE-2011-4895","generatedAt":"2026-10-28T03:22:16.379Z","title":"Tor before 0.2.2.34, when configured as a bridge, sets up circuits through a process different from the process used by a client, which makes it easier for remote attackers to enumerate bridges by observing circuit building.","description":"Tor before 0.2.2.34, when configured as a bridge, sets up circuits through a process different from the process used by a client, which makes it easier for remote attackers to enumerate bridges by observing circuit building.","published":"2011-12-23T03:59:22.000Z","lastModified":"2026-06-16T23:35:35.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":4.3,"severity":"MEDIUM","vector":"AV:N/AC:M/Au:N/C:P/I:N/A:N"},"cwe":["CWE-200"],"affected":["tor/tor"],"epss":{"score":0.01528,"percentile":0.74537,"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":"low","text":"Lower severity and a low EPSS score (1.53%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://blog.torproject.org/blog/tor-02234-released-security-patches","tags":["Patch","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://blog.torproject.org/blog/tor-02234-released-security-patches","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2011-4895","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."}