--- title: "CVE-2019-0211: Use After Free | CubePath" description: "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…" language: en source: https://cubepath.com/security/cve/CVE-2019-0211 --- # CVE-2019-0211: Use After Free | CubePath ## Description 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. Official description from the CVE record, published by apache. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2019-0211) ## Key data ### CVSS 3.1 High 7.8 Score published by CISA-ADP in the CVE record. CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | Metric | Value | What it means | | ---------------------- | --------- | ----------------------------------------------------------------------------------------- | | Attack vector | Local | The attacker needs local access to the system, or to trick a user into running something. | | Attack complexity | Low | No special conditions are needed. The attack can be repeated at will. | | Privileges required | Low | A basic user account is needed. | | User interaction | None | No action from any user is needed. | | Scope | Unchanged | The impact stays within the vulnerable component. | | Confidentiality impact | High | Serious or total effect on the secrecy of data. | | Integrity impact | High | Serious or total effect on the trustworthiness of data. | | Availability impact | High | Serious or total effect on availability. | CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at [first.org/cvss](https://www.first.org/cvss/) . ### EPSS Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days. Score 0.65005 (65.0% probability) Percentile 99.3% Scores of Nov 10, 2026 Model v2026.06.15 ### CISA Known Exploited Vulnerabilities This CVE is listed in the CISA KEV catalog. Name in the catalog Apache HTTP Server Privilege Escalation Vulnerability Added to the catalog Nov 3, 2021 Federal due date May 3, 2022 ### CISA assessment as of Feb 6, 2025 Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA. Exploitation Recorded by CISA as active Automatable no Technical impact total ### Weakness (CWE) CWE catalog version 5.0. CWE names: Copyright © 2006-2026, The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CWE license. - [CWE-416](https://cwe.mitre.org/data/definitions/416.html) Use After Free ## Affected products Products listed in the CVE record, as the CNA published them. - Apache HTTP Server - affected: 2.4.17 to 2.4.38 ## References Links listed in the CVE record. They lead to other sites, which CubePath does not control. - [\[oss-security\] 20190401 CVE-2019-0211: Apache HTTP Server privilege escalation from modules' scripts](http://www.openwall.com/lists/oss-security/2019/04/02/3) (openwall.com) mailing-list - [107666](http://www.securityfocus.com/bid/107666) (securityfocus.com) vdb-entry - [20190403 \[SECURITY\] \[DSA 4422-1\] apache2 security update](https://seclists.org/bugtraq/2019/Apr/5) (seclists.org) mailing-list - [synology.com/security/advisory/Synology\_SA\_19\_14](https://www.synology.com/security/advisory/Synology%5FSA%5F19%5F14) - [packetstormsecurity.com/files/152386/Apache-2.4.38-Root-Pri…](http://packetstormsecurity.com/files/152386/Apache-2.4.38-Root-Privilege-Escalation.html) - [USN-3937-1](https://usn.ubuntu.com/3937-1/) (usn.ubuntu.com) vendor-advisory - [FEDORA-2019-cf7695b470](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WETXNQWNQLWHV6XNW6YTO5UGDTIWAQGT/) (lists.fedoraproject.org) vendor-advisory - [DSA-4422](https://www.debian.org/security/2019/dsa-4422) (debian.org) vendor-advisory - [\[httpd-users\] 20190406 \[users@httpd\] CVE-2019-0211/0215/0217](https://lists.apache.org/thread.html/b1613d44ec364c87bb7ee8c5939949f9b061c05c06e0e90098ebf7aa%40%3Cusers.httpd.apache.org%3E) (lists.apache.org) mailing-list - [FEDORA-2019-119b14075a](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EZRMTEIGZKYFNGIDOTXN3GNEJTLVCYU7/) (lists.fedoraproject.org) vendor-advisory - [20190407 \[slackware-security\] httpd (SSA:2019-096-01)](https://seclists.org/bugtraq/2019/Apr/16) (seclists.org) mailing-list - [46676](https://www.exploit-db.com/exploits/46676/) (exploit-db.com) exploit - [httpd.apache.org/security/vulnerabilities\_24.html](https://httpd.apache.org/security/vulnerabilities%5F24.html) - [packetstormsecurity.com/files/152415/Slackware-Security-Adv…](http://packetstormsecurity.com/files/152415/Slackware-Security-Advisory-httpd-Updates.html) - [packetstormsecurity.com/files/152441/CARPE-DIEM-Apache-2.4.…](http://packetstormsecurity.com/files/152441/CARPE-DIEM-Apache-2.4.x-Local-Privilege-Escalation.html) - [apache.org/dist/httpd/CHANGES\_2.4.39](http://www.apache.org/dist/httpd/CHANGES%5F2.4.39) - [\[community-dev\] 20190411 CVE-2019-0211 applicable to versions 2.2.x?](https://lists.apache.org/thread.html/890507b85c30adf133216b299cc35cd8cd0346a885acfc671c04694e%40%3Cdev.community.apache.org%3E) (lists.apache.org) mailing-list - [\[community-dev\] 20190411 Re: CVE-2019-0211 applicable to versions 2.2.x?](https://lists.apache.org/thread.html/b2bdb308dc015e771ba79c0586b2de6fb50caa98b109833f5d4daf28%40%3Cdev.community.apache.org%3E) (lists.apache.org) mailing-list - [RHSA-2019:0746](https://access.redhat.com/errata/RHSA-2019:0746) (access.redhat.com) vendor-advisory - [openSUSE-SU-2019:1190](http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00051.html) (lists.opensuse.org) vendor-advisory - [\[community-dev\] 20190411 RE: CVE-2019-0211 applicable to versions 2.2.x?](https://lists.apache.org/thread.html/de881a130bc9cb2f3a9ff220784520556884fb8ea80e69400a45509e%40%3Cdev.community.apache.org%3E) (lists.apache.org) mailing-list - [support.f5.com/csp/article/K32957101](https://support.f5.com/csp/article/K32957101) - [openSUSE-SU-2019:1209](http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00061.html) (lists.opensuse.org) vendor-advisory - [GLSA-201904-20](https://security.gentoo.org/glsa/201904-20) (security.gentoo.org) vendor-advisory - [security.netapp.com/advisory/ntap-20190423-0001](https://security.netapp.com/advisory/ntap-20190423-0001/) - [openSUSE-SU-2019:1258](http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00084.html) (lists.opensuse.org) vendor-advisory - [RHSA-2019:0980](https://access.redhat.com/errata/RHSA-2019:0980) (access.redhat.com) vendor-advisory - [RHBA-2019:0959](https://access.redhat.com/errata/RHBA-2019:0959) (access.redhat.com) vendor-advisory - [FEDORA-2019-a4ed7400f4](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ALIR5S3O7NRHEGFMIDMUSYQIZOE4TJJN/) (lists.fedoraproject.org) vendor-advisory - [RHSA-2019:1297](https://access.redhat.com/errata/RHSA-2019:1297) (access.redhat.com) vendor-advisory - [RHSA-2019:1296](https://access.redhat.com/errata/RHSA-2019:1296) (access.redhat.com) vendor-advisory - [\[httpd-cvs\] 20190611 svn commit: r1861068 - /httpd/site/trunk/content/security/vulnerabilities-httpd.xml](https://lists.apache.org/thread.html/fd110f4ace2d8364c7d9190e1993cde92f79e4eb85576ed9285686ac%40%3Ccvs.httpd.apache.org%3E) (lists.apache.org) mailing-list - [RHSA-2019:1543](https://access.redhat.com/errata/RHSA-2019:1543) (access.redhat.com) vendor-advisory - [oracle.com/technetwork/security-advisory/cpujul2019-5072835…](https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html) - [\[oss-security\] 20190726 Re: Statistics for distros lists updated for 2019Q2](http://www.openwall.com/lists/oss-security/2019/07/26/7) (openwall.com) mailing-list - [\[httpd-cvs\] 20190815 svn commit: r1048743 \[4/4\] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities\_13.html security/vulnerabilities\_20.html security/vulnerabilities\_22.html security/vulnerabilities\_24.html](https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3E) (lists.apache.org) mailing-list - [\[httpd-cvs\] 20190815 svn commit: r1048742 \[4/4\] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities\_13.html security/vulnerabilities\_20.html security/vulnerabilities\_22.html security/vulnerabilities\_24.html](https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%3E) (lists.apache.org) mailing-list - [support.hpe.com/hpsc/doc/public/display?docLocale=en\_US&doc…](https://support.hpe.com/hpsc/doc/public/display?docLocale=en%5FUS&docId=emr%5Fna-hpesbux03950en%5Fus) - [oracle.com/technetwork/security-advisory/cpuoct2019-5072832…](https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html) - [\[announce\] 20200131 Apache Software Foundation Security Report: 2019](https://lists.apache.org/thread.html/r6d03e45b81eab03580cf7f8bb51cb3e9a1b10a2cc0c6a2d3cc92ed0c%40%3Cannounce.apache.org%3E) (lists.apache.org) mailing-list - [\[httpd-cvs\] 20200401 svn commit: r1058586 \[4/4\] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities\_13.html security/vulnerabilities\_20.html security/vulnerabilities\_22.html security/vulnerabilities\_24.html](https://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org%3E) (lists.apache.org) mailing-list - [\[httpd-cvs\] 20200401 svn commit: r1058587 \[4/4\] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities\_13.html security/vulnerabilities\_20.html security/vulnerabilities\_22.html security/vulnerabilities\_24.html](https://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234%40%3Ccvs.httpd.apache.org%3E) (lists.apache.org) mailing-list - [oracle.com/security-alerts/cpuapr2020.html](https://www.oracle.com/security-alerts/cpuapr2020.html) - [\[httpd-cvs\] 20210330 svn commit: r1073139 \[1/13\] - in /websites/staging/httpd/trunk/content: ./ security/json/](https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E) (lists.apache.org) mailing-list - [\[httpd-cvs\] 20210330 svn commit: r1073143 \[3/3\] - in /websites/staging/httpd/trunk/content: ./ security/](https://lists.apache.org/thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf%40%3Ccvs.httpd.apache.org%3E) (lists.apache.org) mailing-list - [\[httpd-cvs\] 20210330 svn commit: r1073140 \[4/4\] - in /websites/staging/httpd/trunk/content: ./ security/cvejsontohtml.py security/vulnerabilities\_13.html security/vulnerabilities\_20.html security/vulnerabilities\_22.html security/vulnerabilities\_24.html](https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3E) (lists.apache.org) mailing-list - [\[httpd-cvs\] 20210330 svn commit: r1073139 \[12/13\] - in /websites/staging/httpd/trunk/content: ./ security/json/](https://lists.apache.org/thread.html/r03ee478b3dda3e381fd6189366fa7af97c980d2f602846eef935277d%40%3Ccvs.httpd.apache.org%3E) (lists.apache.org) mailing-list - [\[httpd-cvs\] 20210330 svn commit: r1888194 \[12/13\] - /httpd/site/trunk/content/security/json/](https://lists.apache.org/thread.html/rd2fb621142e7fa187cfe12d7137bf66e7234abcbbcd800074c84a538%40%3Ccvs.httpd.apache.org%3E) (lists.apache.org) mailing-list - [\[httpd-cvs\] 20210330 svn commit: r1073149 \[1/13\] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/](https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E) (lists.apache.org) mailing-list - [\[httpd-cvs\] 20210330 svn commit: r1073149 \[12/13\] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/](https://lists.apache.org/thread.html/re473305a65b4db888e3556e4dae10c2a04ee89dcff2e26ecdbd860a9%40%3Ccvs.httpd.apache.org%3E) (lists.apache.org) mailing-list - [\[httpd-cvs\] 20210606 svn commit: r1075470 \[4/4\] - in /websites/staging/httpd/trunk/content: ./ security/json/CVE-2020-13938.json security/vulnerabilities\_13.html security/vulnerabilities\_20.html security/vulnerabilities\_22.html security/vulnerabilities\_24.html](https://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d%40%3Ccvs.httpd.apache.org%3E) (lists.apache.org) mailing-list ## Timeline 1. ID reserved Nov 14, 2018 2. Record published Apr 8, 2019 3. Added to CISA KEV Nov 3, 2021 4. Record last updated Oct 21, 2025 ## Look up another CVE ## About CubePath CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection. [Cloud VPS](https://cubepath.com/vps) [DDoS protection](https://cubepath.com/ddos-protection) Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 19:35 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)