CVE-2019-0211

Exp

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.

Published: 2019-04-08 Last update: 2025-10-27 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2019-0211 is rated Critical Active Threat (90.4/100): CVSS High severity, with high exploitation likelihood (EPSS 89.57%, 100th percentile). Core evidence: CISA KEV confirms active exploitation (added 2021-11-03) affecting Apache / HTTP Server. a weakness (CWE-416) Unauthenticated remote administrative access may be possible. Mandatory action: The CISA remediation deadline has passed—treat as an emergency patch priority.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

CISA KEV Record for CVE-2019-0211

Name: Apache HTTP Server Privilege Escalation Vulnerability · CISA KEV detail

Exploit added: 2021-11-03

Action due: 2022-05-03

Required action: Apply updates per vendor instructions.

Public exploit references (Exploit-DB) for CVE-2019-0211

EDB-ID Source Kind Published Link
46676 exploit_db edb 2019-04-08 Exploit-DB ↗
nvd_ref exploit_tag Exploit-DB ↗
nvd_ref exploit_tag Exploit-DB ↗
nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2019-0211

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-11 90.18% 89.57% -0.61%
2 2026-05-05 90.91% 90.18% -0.73%
3 2026-04-07 90.91%

Full EPSS history (91 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-0211

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
1.8 5.9 [email protected]
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
1.8 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0
7.2 2.0 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
3.9 10.0 [email protected]

Weakness enumeration for CVE-2019-0211

OS Trackers for CVE-2019-0211

vendor priority summary link
alpine CVE-2019-0211: 1 source package rows (apache2); 10 state rows across 10 repos (3.10-main, 3.11-main, 3.12-main, 3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 10, open 0. https://security.alpinelinux.org/vuln/CVE-2019-0211
debian not yet assigned CVE-2019-0211 not yet assigned priority: Debian including 1 source packages (apache2), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2019-0211
gentoo normal CVE-2019-0211: 1 GLSA(s) (201904-20), 1 atom(s) (www-servers/apache); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2019-0211
redhat high https://access.redhat.com/security/cve/CVE-2019-0211
suse medium CVE-2019-0211 severity moderate: SUSE including 47 source package names (apache2, apache2-2.4.23-29.40.1, …), 158 product×package rows across 33 product lines (SLES for SAP Applications 11 SP3, SUSE Enterprise Storage 4, … (33 product lines)): Fixed 126, Known Not Affected 32. https://www.suse.com/security/cve/CVE-2019-0211/
ubuntu high CVE-2019-0211 high priority: Ubuntu including 1 source packages (apache2), 5 status rows across 5 suites (bionic, cosmic, trusty, upstream, xenial): released 3, needs-triage 1, not-affected 1. https://ubuntu.com/security/CVE-2019-0211

Affected software / configurations for CVE-2019-0211

Vendor Product Version Raw CPE
apache http_server >= 2.4.17, <= 2.4.38 cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
fedoraproject fedora 28 cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:*
fedoraproject fedora 29 cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*
fedoraproject fedora 30 cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
canonical ubuntu_linux 14.04 cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
canonical ubuntu_linux 16.04 cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
canonical ubuntu_linux 18.04 cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:esm:*:*:*
canonical ubuntu_linux 18.10 cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
debian debian_linux 9.0 cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
opensuse leap 15.0 cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*
opensuse leap 42.3 cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:*
netapp oncommand_unified_manager cpe:2.3:a:netapp:oncommand_unified_manager:-:*:*:*:*:7-mode:*:*
redhat jboss_core_services 1.0 cpe:2.3:a:redhat:jboss_core_services:1.0:*:*:*:*:*:*:*
redhat openshift_container_platform 3.11 cpe:2.3:a:redhat:openshift_container_platform:3.11:*:*:*:*:*:*:*
redhat openshift_container_platform_for_power 3.11_ppc64le cpe:2.3:a:redhat:openshift_container_platform_for_power:3.11_ppc64le:*:*:*:*:*:*:*
redhat software_collections 1.0 cpe:2.3:a:redhat:software_collections:1.0:*:*:*:*:*:*:*
redhat enterprise_linux 8.0 cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
redhat enterprise_linux_eus 8.1 cpe:2.3:o:redhat:enterprise_linux_eus:8.1:*:*:*:*:*:*:*
redhat enterprise_linux_eus 8.2 cpe:2.3:o:redhat:enterprise_linux_eus:8.2:*:*:*:*:*:*:*
redhat enterprise_linux_eus 8.4 cpe:2.3:o:redhat:enterprise_linux_eus:8.4:*:*:*:*:*:*:*
redhat enterprise_linux_eus 8.6 cpe:2.3:o:redhat:enterprise_linux_eus:8.6:*:*:*:*:*:*:*
redhat enterprise_linux_eus 8.8 cpe:2.3:o:redhat:enterprise_linux_eus:8.8:*:*:*:*:*:*:*
redhat enterprise_linux_for_arm_64 8.0_aarch64 cpe:2.3:o:redhat:enterprise_linux_for_arm_64:8.0_aarch64:*:*:*:*:*:*:*
redhat enterprise_linux_for_arm_64_eus 8.1_aarch64 cpe:2.3:o:redhat:enterprise_linux_for_arm_64_eus:8.1_aarch64:*:*:*:*:*:*:*
redhat enterprise_linux_for_arm_64_eus 8.2_aarch64 cpe:2.3:o:redhat:enterprise_linux_for_arm_64_eus:8.2_aarch64:*:*:*:*:*:*:*
redhat enterprise_linux_for_arm_64_eus 8.4_aarch64 cpe:2.3:o:redhat:enterprise_linux_for_arm_64_eus:8.4_aarch64:*:*:*:*:*:*:*
redhat enterprise_linux_for_arm_64_eus 8.6_aarch64 cpe:2.3:o:redhat:enterprise_linux_for_arm_64_eus:8.6_aarch64:*:*:*:*:*:*:*
redhat enterprise_linux_for_arm_64_eus 8.8_aarch64 cpe:2.3:o:redhat:enterprise_linux_for_arm_64_eus:8.8_aarch64:*:*:*:*:*:*:*
redhat enterprise_linux_for_ibm_z_systems 8.0_s390x cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:8.0_s390x:*:*:*:*:*:*:*
redhat enterprise_linux_for_ibm_z_systems_eus 8.1_s390x cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.1_s390x:*:*:*:*:*:*:*
redhat enterprise_linux_for_ibm_z_systems_eus 8.2_s390x cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.2_s390x:*:*:*:*:*:*:*
redhat enterprise_linux_for_ibm_z_systems_eus 8.4_s390x cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.4_s390x:*:*:*:*:*:*:*
redhat enterprise_linux_for_ibm_z_systems_eus 8.6_s390x cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.6_s390x:*:*:*:*:*:*:*
redhat enterprise_linux_for_ibm_z_systems_eus 8.8_s390x cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.8_s390x:*:*:*:*:*:*:*
redhat enterprise_linux_for_power_little_endian 8.0_ppc64le cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0_ppc64le:*:*:*:*:*:*:*
redhat enterprise_linux_for_power_little_endian_eus 8.1_ppc64le cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.1_ppc64le:*:*:*:*:*:*:*
redhat enterprise_linux_for_power_little_endian_eus 8.2_ppc64le cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.2_ppc64le:*:*:*:*:*:*:*
redhat enterprise_linux_for_power_little_endian_eus 8.4_ppc64le cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.4_ppc64le:*:*:*:*:*:*:*
redhat enterprise_linux_for_power_little_endian_eus 8.6_ppc64le cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.6_ppc64le:*:*:*:*:*:*:*
redhat enterprise_linux_for_power_little_endian_eus 8.8_ppc64le cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.8_ppc64le:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 8.2 cpe:2.3:o:redhat:enterprise_linux_server_aus:8.2:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 8.4 cpe:2.3:o:redhat:enterprise_linux_server_aus:8.4:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 8.6 cpe:2.3:o:redhat:enterprise_linux_server_aus:8.6:*:*:*:*:*:*:*
redhat enterprise_linux_server_tus 8.2 cpe:2.3:o:redhat:enterprise_linux_server_tus:8.2:*:*:*:*:*:*:*
redhat enterprise_linux_server_tus 8.4 cpe:2.3:o:redhat:enterprise_linux_server_tus:8.4:*:*:*:*:*:*:*
redhat enterprise_linux_server_tus 8.6 cpe:2.3:o:redhat:enterprise_linux_server_tus:8.6:*:*:*:*:*:*:*
redhat enterprise_linux_server_tus 8.8 cpe:2.3:o:redhat:enterprise_linux_server_tus:8.8:*:*:*:*:*:*:*
redhat enterprise_linux_update_services_for_sap_solutions 8.0 cpe:2.3:o:redhat:enterprise_linux_update_services_for_sap_solutions:8.0:*:*:*:*:*:*:*
redhat enterprise_linux_update_services_for_sap_solutions 8.1 cpe:2.3:o:redhat:enterprise_linux_update_services_for_sap_solutions:8.1:*:*:*:*:*:*:*
redhat enterprise_linux_update_services_for_sap_solutions 8.4 cpe:2.3:o:redhat:enterprise_linux_update_services_for_sap_solutions:8.4:*:*:*:*:*:*:*
redhat enterprise_linux_update_services_for_sap_solutions 8.6 cpe:2.3:o:redhat:enterprise_linux_update_services_for_sap_solutions:8.6:*:*:*:*:*:*:*
redhat enterprise_linux_update_services_for_sap_solutions 8.8 cpe:2.3:o:redhat:enterprise_linux_update_services_for_sap_solutions:8.8:*:*:*:*:*:*:*
oracle communications_session_report_manager 8.0.0 cpe:2.3:a:oracle:communications_session_report_manager:8.0.0:*:*:*:*:*:*:*
oracle communications_session_report_manager 8.1.0 cpe:2.3:a:oracle:communications_session_report_manager:8.1.0:*:*:*:*:*:*:*
oracle communications_session_report_manager 8.1.1 cpe:2.3:a:oracle:communications_session_report_manager:8.1.1:*:*:*:*:*:*:*
oracle communications_session_report_manager 8.2.0 cpe:2.3:a:oracle:communications_session_report_manager:8.2.0:*:*:*:*:*:*:*
oracle communications_session_route_manager 8.0.0 cpe:2.3:a:oracle:communications_session_route_manager:8.0.0:*:*:*:*:*:*:*
oracle communications_session_route_manager 8.1.0 cpe:2.3:a:oracle:communications_session_route_manager:8.1.0:*:*:*:*:*:*:*
oracle communications_session_route_manager 8.1.1 cpe:2.3:a:oracle:communications_session_route_manager:8.1.1:*:*:*:*:*:*:*
oracle communications_session_route_manager 8.2.0 cpe:2.3:a:oracle:communications_session_route_manager:8.2.0:*:*:*:*:*:*:*
oracle enterprise_manager_ops_center 12.3.3 cpe:2.3:a:oracle:enterprise_manager_ops_center:12.3.3:*:*:*:*:*:*:*
oracle enterprise_manager_ops_center 12.4.0 cpe:2.3:a:oracle:enterprise_manager_ops_center:12.4.0:*:*:*:*:*:*:*
oracle http_server 12.2.1.3.0 cpe:2.3:a:oracle:http_server:12.2.1.3.0:*:*:*:*:*:*:*
oracle instantis_enterprisetrack 17.1 cpe:2.3:a:oracle:instantis_enterprisetrack:17.1:*:*:*:*:*:*:*
oracle instantis_enterprisetrack 17.2 cpe:2.3:a:oracle:instantis_enterprisetrack:17.2:*:*:*:*:*:*:*
oracle instantis_enterprisetrack 17.3 cpe:2.3:a:oracle:instantis_enterprisetrack:17.3:*:*:*:*:*:*:*
oracle retail_xstore_point_of_service 7.0 cpe:2.3:a:oracle:retail_xstore_point_of_service:7.0:*:*:*:*:*:*:*
oracle retail_xstore_point_of_service 7.1 cpe:2.3:a:oracle:retail_xstore_point_of_service:7.1:*:*:*:*:*:*:*

References for CVE-2019-0211

URL Tags
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00051.html Broken Link Mailing List Release Notes Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00061.html Broken Link Mailing List Release Notes Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00084.html Broken Link Third Party Advisory
http://packetstormsecurity.com/files/152386/Apache-2.4.38-Root-Privilege-Escalation.html Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/152415/Slackware-Security-Advisory-httpd-Updates.html Exploit Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/152441/CARPE-DIEM-Apache-2.4.x-Local-Privilege-Escalation.html Exploit Third Party Advisory VDB Entry
http://www.apache.org/dist/httpd/CHANGES_2.4.39 Broken Link Vendor Advisory
http://www.openwall.com/lists/oss-security/2019/04/02/3 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2019/07/26/7 Mailing List
http://www.securityfocus.com/bid/107666 Broken Link Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHBA-2019:0959 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0746 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0980 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1296 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1297 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1543 Third Party Advisory
https://httpd.apache.org/security/vulnerabilities_24.html Vendor Advisory
https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3E Mailing List
https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%3E Mailing List
https://lists.apache.org/thread.html/890507b85c30adf133216b299cc35cd8cd0346a885acfc671c04694e%40%3Cdev.community.apache.org%3E Mailing List
https://lists.apache.org/thread.html/b1613d44ec364c87bb7ee8c5939949f9b061c05c06e0e90098ebf7aa%40%3Cusers.httpd.apache.org%3E Mailing List
https://lists.apache.org/thread.html/b2bdb308dc015e771ba79c0586b2de6fb50caa98b109833f5d4daf28%40%3Cdev.community.apache.org%3E Mailing List
https://lists.apache.org/thread.html/de881a130bc9cb2f3a9ff220784520556884fb8ea80e69400a45509e%40%3Cdev.community.apache.org%3E Mailing List
https://lists.apache.org/thread.html/fd110f4ace2d8364c7d9190e1993cde92f79e4eb85576ed9285686ac%40%3Ccvs.httpd.apache.org%3E Mailing List
https://lists.apache.org/thread.html/r03ee478b3dda3e381fd6189366fa7af97c980d2f602846eef935277d%40%3Ccvs.httpd.apache.org%3E Mailing List
https://lists.apache.org/thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf%40%3Ccvs.httpd.apache.org%3E Mailing List
https://lists.apache.org/thread.html/r6d03e45b81eab03580cf7f8bb51cb3e9a1b10a2cc0c6a2d3cc92ed0c%40%3Cannounce.apache.org%3E Mailing List
https://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d%40%3Ccvs.httpd.apache.org%3E Mailing List
https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E Mailing List Patch
https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3E Mailing List
https://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org%3E Mailing List
https://lists.apache.org/thread.html/rd2fb621142e7fa187cfe12d7137bf66e7234abcbbcd800074c84a538%40%3Ccvs.httpd.apache.org%3E Mailing List
https://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234%40%3Ccvs.httpd.apache.org%3E Mailing List
https://lists.apache.org/thread.html/re473305a65b4db888e3556e4dae10c2a04ee89dcff2e26ecdbd860a9%40%3Ccvs.httpd.apache.org%3E Mailing List
https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E Mailing List
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ALIR5S3O7NRHEGFMIDMUSYQIZOE4TJJN/ Release Notes
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EZRMTEIGZKYFNGIDOTXN3GNEJTLVCYU7/ Release Notes
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WETXNQWNQLWHV6XNW6YTO5UGDTIWAQGT/ Release Notes
https://seclists.org/bugtraq/2019/Apr/16 Mailing List Patch Third Party Advisory
https://seclists.org/bugtraq/2019/Apr/5 Mailing List Third Party Advisory
https://security.gentoo.org/glsa/201904-20 Third Party Advisory
https://security.netapp.com/advisory/ntap-20190423-0001/ Third Party Advisory
https://support.f5.com/csp/article/K32957101 Third Party Advisory
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03950en_us Third Party Advisory
https://usn.ubuntu.com/3937-1/ Third Party Advisory
https://www.debian.org/security/2019/dsa-4422 Mailing List Third Party Advisory
https://www.exploit-db.com/exploits/46676/ Exploit Third Party Advisory VDB Entry
https://www.oracle.com/security-alerts/cpuapr2020.html Patch Third Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html Patch Third Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html Patch Third Party Advisory
https://www.synology.com/security/advisory/Synology_SA_19_14 Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-0211 US Government Resource
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