{"id":"CVE-2011-0438","url":"https://www.cyber-defence.io/tools/cve/CVE-2011-0438","generatedAt":"2026-10-27T17:58:01.693Z","title":"nslcd/pam.c in the nss-pam-ldapd 0.8.0 PAM module returns a success code when a user is not found in LDAP, which allows remote attackers to bypass authentication.","description":"nslcd/pam.c in the nss-pam-ldapd 0.8.0 PAM module returns a success code when a user is not found in LDAP, which allows remote attackers to bypass authentication.","published":"2011-03-15T17:55:03.000Z","lastModified":"2026-06-16T23:27:23.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":6.8,"severity":"MEDIUM","vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P"},"cwe":["CWE-287"],"affected":["arthurdejong/nss-pam-ldapd"],"epss":{"score":0.01527,"percentile":0.74525,"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":"http://arthurdejong.org/nss-pam-ldapd/news.html#20110309","source":"cve@mitre.org"},{"url":"http://lists.arthurdejong.org/nss-pam-ldapd-announce/2011/attachments/txtVf3rHgt8qQ.txt","tags":["Patch"],"source":"cve@mitre.org"},{"url":"http://lists.arthurdejong.org/nss-pam-ldapd-announce/2011/msg00000.html","tags":["Patch","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://securityreason.com/securityalert/8132","source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/46819","tags":["Patch"],"source":"cve@mitre.org"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/66028","source":"cve@mitre.org"},{"url":"http://arthurdejong.org/nss-pam-ldapd/news.html#20110309","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.arthurdejong.org/nss-pam-ldapd-announce/2011/attachments/txtVf3rHgt8qQ.txt","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.arthurdejong.org/nss-pam-ldapd-announce/2011/msg00000.html","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://securityreason.com/securityalert/8132","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/46819","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/66028","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2011-0438","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."}