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High 7.8Known exploited (CISA KEV)Published Apr 8, 2019
CVE-2019-0211In Apache HTTP Server 2.4 releases 2.4.17 to 2.4.38, with MPM event, worker or prefork, code executing in less-privileged child processes or threads (including scripts executed by an in-process scrip…
Updated under an hour ago ()
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It affects Apache HTTP Server and 26 other products. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Nov 3, 2021; federal agencies had to remediate by May 3, 2022. Treat that date as your deadline.
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In Apache HTTP Server 2.4 releases 2.4.17 to 2.4.38, with MPM event, worker or prefork, code executing in less-privileged child processes or threads (including scripts executed by an in-process scripting interpreter) could execute arbitrary code with the privileges of the parent process (usually root) by manipulating the scoreboard. Non-Unix systems are not affected.
- CVSS
- 7.8 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-416
- Known exploited
- Added to CISA KEV Nov 3, 2021; federal remediation due May 3, 2022Apply updates per vendor instructions.
- EPSS (exploitation in the next 30 days)
- 65.00% (percentile 99)
- Assigned by
- apache
- NVD analysis
- Analyzed
- Record last updated
- Oct 21, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Apache Apache HTTP Server apache:http_server (from the name) | 2.4.17 to 2.4.38 | CNA record |
apache http_server apache:http_server | from 2.4.17 through 2.4.38 | NVD |
fedoraproject fedora fedoraproject:fedora | 28; 29; 30 | NVD |
canonical ubuntu_linux canonical:ubuntu_linux | 14.04; 16.04; 18.04; 18.10 | NVD |
debian debian_linux debian:debian_linux | 9.0 | NVD |
opensuse leap opensuse:leap | 15.0; 42.3 | NVD |
netapp oncommand_unified_manager netapp:oncommand_unified_manager | all versions | NVD |
redhat jboss_core_services redhat:jboss_core_services | 1.0 | NVD |
redhat openshift_container_platform redhat:openshift_container_platform | 3.11 | NVD |
redhat openshift_container_platform_for_power redhat:openshift_container_platform_for_power | 3.11_ppc64le | NVD |
redhat software_collections redhat:software_collections | 1.0 | NVD |
redhat enterprise_linux redhat:enterprise_linux | 8.0 | NVD |
redhat enterprise_linux_eus redhat:enterprise_linux_eus | 8.1; 8.2; 8.4; 8.6; 8.8 | NVD |
redhat enterprise_linux_for_arm_64 redhat:enterprise_linux_for_arm_64 | 8.0_aarch64 | NVD |
redhat enterprise_linux_for_arm_64_eus redhat:enterprise_linux_for_arm_64_eus | 8.1_aarch64; 8.2_aarch64; 8.4_aarch64; 8.6_aarch64; 8.8_aarch64 | NVD |
redhat enterprise_linux_for_ibm_z_systems redhat:enterprise_linux_for_ibm_z_systems | 8.0_s390x | NVD |
redhat enterprise_linux_for_ibm_z_systems_eus redhat:enterprise_linux_for_ibm_z_systems_eus | 8.1_s390x; 8.2_s390x; 8.4_s390x; 8.6_s390x; 8.8_s390x | NVD |
redhat enterprise_linux_for_power_little_endian redhat:enterprise_linux_for_power_little_endian | 8.0_ppc64le | NVD |
redhat enterprise_linux_for_power_little_endian_eus redhat:enterprise_linux_for_power_little_endian_eus | 8.1_ppc64le; 8.2_ppc64le; 8.4_ppc64le; 8.6_ppc64le; 8.8_ppc64le | NVD |
redhat enterprise_linux_server_aus redhat:enterprise_linux_server_aus | 8.2; 8.4; 8.6 | NVD |
redhat enterprise_linux_server_tus redhat:enterprise_linux_server_tus | 8.2; 8.4; 8.6; 8.8 | NVD |
redhat enterprise_linux_update_services_for_sap_solutions redhat:enterprise_linux_update_services_for_sap_solutions | 8.0; 8.1; 8.4; 8.6; 8.8 | NVD |
oracle communications_session_report_manager oracle:communications_session_report_manager | 8.0.0; 8.1.0; 8.1.1; 8.2.0 | NVD |
oracle communications_session_route_manager oracle:communications_session_route_manager | 8.0.0; 8.1.0; 8.1.1; 8.2.0 | NVD |
oracle enterprise_manager_ops_center oracle:enterprise_manager_ops_center | 12.3.3; 12.4.0 | NVD |
oracle http_server oracle:http_server | 12.2.1.3.0 | NVD |
oracle instantis_enterprisetrack oracle:instantis_enterprisetrack | 17.1; 17.2; 17.3 | NVD |
oracle retail_xstore_point_of_service oracle:retail_xstore_point_of_service | 7.0; 7.1 | NVD |
References
- http://www.openwall.com/lists/oss-security/2019/04/02/3mailing-list, x-refsource-mlist, third-party-advisory
- http://www.securityfocus.com/bid/107666vdb-entry, x-refsource-bid, broken-link, third-party-advisory
- https://seclists.org/bugtraq/2019/Apr/5mailing-list, x-refsource-bugtraq
- https://www.synology.com/security/advisory/Synology_SA_19_14x-refsource-confirm
- http://packetstormsecurity.com/files/152386/Apache-2.4.38-Root-Privilege-Escalation.htmlx-refsource-misc, third-party-advisory, vdb-entry
- https://usn.ubuntu.com/3937-1/vendor-advisory, x-refsource-ubuntu
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WETXNQWNQLWHV6XNW6YTO5UGDTIWAQGT/vendor-advisory, x-refsource-fedora
- https://www.debian.org/security/2019/dsa-4422vendor-advisory, x-refsource-debian
- https://lists.apache.org/thread.html/b1613d44ec364c87bb7ee8c5939949f9b061c05c06e0e90098ebf7aa%40%3Cusers.httpd.apache.org%3Emailing-list, x-refsource-mlist
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EZRMTEIGZKYFNGIDOTXN3GNEJTLVCYU7/vendor-advisory, x-refsource-fedora
- https://seclists.org/bugtraq/2019/Apr/16mailing-list, x-refsource-bugtraq
- https://www.exploit-db.com/exploits/46676/exploit, x-refsource-exploit-db
- https://httpd.apache.org/security/vulnerabilities_24.htmlx-refsource-misc, vendor-advisory
- http://packetstormsecurity.com/files/152415/Slackware-Security-Advisory-httpd-Updates.htmlx-refsource-misc, exploit, third-party-advisory, vdb-entry
- http://packetstormsecurity.com/files/152441/CARPE-DIEM-Apache-2.4.x-Local-Privilege-Escalation.htmlx-refsource-misc, exploit, third-party-advisory, vdb-entry
- http://www.apache.org/dist/httpd/CHANGES_2.4.39x-refsource-misc, broken-link, vendor-advisory
- https://lists.apache.org/thread.html/890507b85c30adf133216b299cc35cd8cd0346a885acfc671c04694e%40%3Cdev.community.apache.org%3Emailing-list, x-refsource-mlist
- https://lists.apache.org/thread.html/b2bdb308dc015e771ba79c0586b2de6fb50caa98b109833f5d4daf28%40%3Cdev.community.apache.org%3Emailing-list, x-refsource-mlist
- https://access.redhat.com/errata/RHSA-2019:0746vendor-advisory, x-refsource-redhat, third-party-advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00051.htmlvendor-advisory, x-refsource-suse, broken-link, mailing-list, release-notes, third-party-advisory
- https://lists.apache.org/thread.html/de881a130bc9cb2f3a9ff220784520556884fb8ea80e69400a45509e%40%3Cdev.community.apache.org%3Emailing-list, x-refsource-mlist
- https://support.f5.com/csp/article/K32957101x-refsource-confirm
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00061.htmlvendor-advisory, x-refsource-suse, broken-link, mailing-list, release-notes, third-party-advisory
- https://security.gentoo.org/glsa/201904-20vendor-advisory, x-refsource-gentoo
- https://security.netapp.com/advisory/ntap-20190423-0001/x-refsource-confirm
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00084.htmlbroken-link, third-party-advisory
- http://www.openwall.com/lists/oss-security/2019/07/26/7mailing-list
- https://access.redhat.com/errata/RHBA-2019:0959third-party-advisory
- https://access.redhat.com/errata/RHSA-2019:0980third-party-advisory
- https://access.redhat.com/errata/RHSA-2019:1296third-party-advisory
- https://access.redhat.com/errata/RHSA-2019:1297third-party-advisory
- https://access.redhat.com/errata/RHSA-2019:1543third-party-advisory
- https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3Emailing-list
- https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%3Emailing-list
- https://lists.apache.org/thread.html/fd110f4ace2d8364c7d9190e1993cde92f79e4eb85576ed9285686ac%40%3Ccvs.httpd.apache.org%3Emailing-list
- https://lists.apache.org/thread.html/r03ee478b3dda3e381fd6189366fa7af97c980d2f602846eef935277d%40%3Ccvs.httpd.apache.org%3Emailing-list
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.