{"id":"CVE-2021-44832","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-44832","generatedAt":"2026-11-05T00:48:28.112Z","title":"Apache Log4j2 versions 2.0-beta7 through 2.17.0 (excluding security fix releases 2.3.2 and 2.12.4) are vulnerable to a remote code execution (RCE) attack when a configuration uses a JDBC Appender with a JNDI LDAP data source URI when an attacker has…","description":"Apache Log4j2 versions 2.0-beta7 through 2.17.0 (excluding security fix releases 2.3.2 and 2.12.4) are vulnerable to a remote code execution (RCE) attack when a configuration uses a JDBC Appender with a JNDI LDAP data source URI when an attacker has control of the target LDAP server. This issue is fixed by limiting JNDI data source names to the java protocol in Log4j2 versions 2.17.1, 2.12.4, and 2.3.2.","published":"2021-12-28T20:15:08.000Z","lastModified":"2026-06-17T04:12:52.000Z","status":"Modified","sourceIdentifier":"security@apache.org","cvss":{"version":"3.1","score":6.6,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-20","CWE-74"],"affected":["apache/log4j","oracle/communications diameter signaling router","oracle/communications interactive session recorder","oracle/primavera gateway","oracle/primavera p6 enterprise project portfolio management","oracle/primavera unifier","oracle/retail assortment planning","oracle/retail fiscal management","oracle/siebel ui framework","oracle/weblogic server","cisco/cloudcenter","fedoraproject/fedora","debian/debian linux","oracle/communications brm - elastic charging engine","oracle/communications offline mediation controller","oracle/flexcube private banking","oracle/health sciences data management workbench","oracle/policy automation","oracle/policy automation for mobile devices","oracle/product lifecycle analytics","oracle/retail order broker","oracle/retail xstore point of service"],"epss":{"score":0.97906,"percentile":0.99909,"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 97.9%, higher than 100% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://www.openwall.com/lists/oss-security/2021/12/28/1","tags":["Mailing List","Third Party Advisory"],"source":"security@apache.org"},{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-784507.pdf","tags":["Third Party Advisory"],"source":"security@apache.org"},{"url":"https://issues.apache.org/jira/browse/LOG4J2-3293","tags":["Issue Tracking","Patch","Vendor Advisory"],"source":"security@apache.org"},{"url":"https://lists.apache.org/thread/s1o5vlo78ypqxnzn6p8zf6t9shtq5143","tags":["Mailing List","Vendor Advisory"],"source":"security@apache.org"},{"url":"https://lists.debian.org/debian-lts-announce/2021/12/msg00036.html","tags":["Mailing List","Third Party Advisory"],"source":"security@apache.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EVV25FXL4FU5X6X5BSL7RLQ7T6F65MRA/","source":"security@apache.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T57MPJUW3MA6QGWZRTMCHHMMPQNVKGFC/","source":"security@apache.org"},{"url":"https://security.netapp.com/advisory/ntap-20220104-0001/","tags":["Third Party Advisory"],"source":"security@apache.org"},{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-log4j-qRuKNEbd","tags":["Third Party Advisory"],"source":"security@apache.org"},{"url":"https://www.oracle.com/security-alerts/cpuapr2022.html","tags":["Patch","Third Party Advisory"],"source":"security@apache.org"},{"url":"https://www.oracle.com/security-alerts/cpujan2022.html","tags":["Patch","Third Party Advisory"],"source":"security@apache.org"},{"url":"https://www.oracle.com/security-alerts/cpujul2022.html","tags":["Patch","Third Party Advisory"],"source":"security@apache.org"},{"url":"http://www.openwall.com/lists/oss-security/2021/12/28/1","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-784507.pdf","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://issues.apache.org/jira/browse/LOG4J2-3293","tags":["Issue Tracking","Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread/s1o5vlo78ypqxnzn6p8zf6t9shtq5143","tags":["Mailing List","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2021/12/msg00036.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EVV25FXL4FU5X6X5BSL7RLQ7T6F65MRA/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T57MPJUW3MA6QGWZRTMCHHMMPQNVKGFC/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20220104-0001/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-log4j-qRuKNEbd","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com/security-alerts/cpuapr2022.html","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com/security-alerts/cpujan2022.html","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com/security-alerts/cpujul2022.html","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-44832","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."}