{"id":"CVE-2011-4028","url":"https://www.cyber-defence.io/tools/cve/CVE-2011-4028","generatedAt":"2026-10-27T18:46:18.598Z","title":"The LockServer function in os/utils.c in X.Org xserver before 1.11.2 allows local users to determine the existence of arbitrary files via a symlink attack on a temporary lock file, which is handled differently if the file exists.","description":"The LockServer function in os/utils.c in X.Org xserver before 1.11.2 allows local users to determine the existence of arbitrary files via a symlink attack on a temporary lock file, which is handled differently if the file exists.","published":"2012-07-03T19:55:02.000Z","lastModified":"2026-06-16T23:34:19.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":1.2,"severity":"LOW","vector":"AV:L/AC:H/Au:N/C:P/I:N/A:N"},"cwe":["CWE-59"],"affected":["x.org/x server"],"epss":{"score":0.00372,"percentile":0.309,"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 (0.37%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://cgit.freedesktop.org/xorg/xserver/commit/?id=6ba44b91e37622ef8c146d8f2ac92d708a18ed34","source":"cve@mitre.org"},{"url":"http://lists.freedesktop.org/archives/xorg/2011-October/053680.html","source":"cve@mitre.org"},{"url":"http://rhn.redhat.com/errata/RHSA-2012-0939.html","source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/46460","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/49579","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://cgit.freedesktop.org/xorg/xserver/commit/?id=6ba44b91e37622ef8c146d8f2ac92d708a18ed34","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.freedesktop.org/archives/xorg/2011-October/053680.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2012-0939.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/46460","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/49579","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2011-4028","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."}