CVE-2019-11043
HIGHCISA KEVEPSS 100th pctlDescription
In PHP versions 7.1.x below 7.1.33, 7.2.x below 7.2.24 and 7.3.x below 7.3.11 in certain configurations of FPM setup it is possible to cause FPM module to write past allocated buffers into the space reserved for FCGI protocol data, thus opening the possibility of remote code execution.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
Exploit Intelligence
Very high risk: more likely to be exploited than 100% of all known CVEs.
PHP FastCGI Process Manager (FPM) Buffer Overflow Vulnerability
In some versions of PHP in certain configurations of FPM setup, it is possible to cause FPM module to write past allocated buffers allowing the possibility of remote code execution.
Apply updates per vendor instructions.
Remediation due: 2022-04-15
Associated with ransomware campaigns
References
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00011.html
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00014.html
- http://packetstormsecurity.com/files/156642/PHP-FPM-7.x-Remote-Code-Execution.html
- http://seclists.org/fulldisclosure/2020/Jan/40
- https://access.redhat.com/errata/RHSA-2019:3286
- https://access.redhat.com/errata/RHSA-2019:3287
- https://access.redhat.com/errata/RHSA-2019:3299
- https://access.redhat.com/errata/RHSA-2019:3300
- https://access.redhat.com/errata/RHSA-2019:3724
- https://access.redhat.com/errata/RHSA-2019:3735
- https://access.redhat.com/errata/RHSA-2019:3736
- https://access.redhat.com/errata/RHSA-2020:0322
- https://bugs.php.net/bug.php?id=78599
- https://github.com/neex/phuip-fpizdam
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3W23TP6X4H7LB645FYZLUPNIRD5W3EPU/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FSNBUSPKMLUHHOADROKNG5GDWDCRHT5M/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T62LF4ZWVV7OMMIZFO6IFO5QLZKK7YRD/
- https://seclists.org/bugtraq/2020/Jan/44
- https://security.netapp.com/advisory/ntap-20191031-0003/
- https://support.apple.com/kb/HT210919
- https://support.f5.com/csp/article/K75408500?utm_source=f5support&%3Butm_medium=RSS
- https://usn.ubuntu.com/4166-1/
- https://usn.ubuntu.com/4166-2/
- https://www.debian.org/security/2019/dsa-4552
- https://www.debian.org/security/2019/dsa-4553
- https://www.synology.com/security/advisory/Synology_SA_19_36
- https://www.tenable.com/security/tns-2021-14
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Start freeThis product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-03.