{"id":"CVE-2021-3100","aliases":["EUVD-2021-26452","GHSA-24pr-9rc2-6xv5"],"status":"published","title":"Log4j hot patch package privilege escalation","description":"The Apache Log4j hotpatch package before log4j-cve-2021-44228-hotpatch-1.1-13 didn’t mimic the permissions of the JVM being patched, allowing it to escalate privileges.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00367,"percentile":0.30894,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-250","CWE-269"],"published":"2022-04-19T22:15:19Z","modified":"2026-06-17T04:04:40Z","products":[{"vendor":"amazon","product":"log4jhotpatch"},{"vendor":"amazon web services","product":"log4j-cve-2021-44228-hotpatch"}],"references":[{"url":"https://alas.aws.amazon.com/AL2/ALAS-2021-1732.html","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://alas.aws.amazon.com/ALAS-2021-1554.html","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://unit42.paloaltonetworks.com/aws-log4shell-hot-patch-vulnerabilities","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3100"},{"url":"https://github.com/advisories/GHSA-24pr-9rc2-6xv5"}],"sources":{"cve":[{"id":"CVE-2021-3100","title":"Log4j hot patch package privilege escalation","description":"The Apache Log4j hotpatch package before log4j-cve-2021-44228-hotpatch-1.1-13 didn’t mimic the permissions of the JVM being patched, allowing it to escalate privileges.","status":"published","published":"2022-04-19T22:15:19.689Z","modified":"2024-09-16T16:48:29.903Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-250"],"updated_at":"2026-11-02T14:33:03.671751Z"}],"euvd":[{"id":"EUVD-2021-26452","description":"The Apache Log4j hotpatch package before log4j-cve-2021-44228-hotpatch-1.1-13 didn’t mimic the permissions of the JVM being patched, allowing it to escalate privileges.","status":"published","published":"2022-04-19T22:15:19Z","modified":"2024-09-16T16:48:29Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T00:55:48.234114Z"}],"ghsa":[{"id":"GHSA-24pr-9rc2-6xv5","title":"The Apache Log4j hotpatch package before log4j-cve-2021-44228-hotpatch-1.1-12 didn’t mimic the...","description":"The Apache Log4j hotpatch package before log4j-cve-2021-44228-hotpatch-1.1-12 didn’t mimic the permissions of the JVM being patched, allowing it to escalate privileges.","status":"published","published":"2022-04-21T00:00:27Z","modified":"2023-01-27T05:01:45Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T14:41:57.859539Z"}],"nvd":[{"id":"CVE-2021-3100","description":"The Apache Log4j hotpatch package before log4j-cve-2021-44228-hotpatch-1.1-13 didn’t mimic the permissions of the JVM being patched, allowing it to escalate privileges.","status":"published","published":"2022-04-19T23:15:13.02Z","modified":"2026-06-17T04:04:40.707Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-250","CWE-269"],"updated_at":"2026-11-02T14:07:06.029737Z"}]}}