Is CVE-2019-11043 actively exploited?

CVE-2019-11043 has no public evidence of in-the-wild exploitation as of 2025-11-03.

What is the CVSS score for CVE-2019-11043?

CVE-2019-11043 has a CVSS score of 8.7 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N.

How do I patch CVE-2019-11043?

Patch guidance is available from php security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2019-11043.

Fix CVE-2019-11043 - HIGH php php

Q: Which products are affected by CVE-2019-11043?

66 products: php php, php php, php php, canonical ubuntu linux, canonical ubuntu linux, and 61 more.

Description

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 Metrics

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
Attack Vector: network
Complexity: high
Privileges: none
User Action: none
Scope: changed
Confidentiality: high
Integrity: high
Availability: none
Weaknesses: CWE-120 CWE-787 · Out-of-bounds Write

Metadata

Primary Vendor: PHP
Published: 10/28/2019
Last Modified: 11/3/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

php : phpphp : phpphp : phpcanonical : ubuntu_linuxcanonical : ubuntu_linuxcanonical : ubuntu_linuxcanonical : ubuntu_linuxcanonical : ubuntu_linuxcanonical : ubuntu_linuxdebian : debian_linuxdebian : debian_linuxfedoraproject : fedorafedoraproject : fedorafedoraproject : fedoratenable : tenable.scredhat : software_collectionsredhat : enterprise_linuxredhat : enterprise_linux_desktopredhat : enterprise_linux_desktopredhat : enterprise_linux_eusredhat : enterprise_linux_eusredhat : enterprise_linux_eusredhat : enterprise_linux_eusredhat : enterprise_linux_eusredhat : enterprise_linux_eusredhat : enterprise_linux_eus_compute_noderedhat : enterprise_linux_for_arm_64redhat : enterprise_linux_for_arm_64_eusredhat : enterprise_linux_for_arm_64_eusredhat : enterprise_linux_for_arm_64_eusredhat : enterprise_linux_for_arm_64_eusredhat : enterprise_linux_for_arm_64_eusredhat : enterprise_linux_for_ibm_z_systemsredhat : enterprise_linux_for_ibm_z_systemsredhat : enterprise_linux_for_ibm_z_systemsredhat : enterprise_linux_for_ibm_z_systems_eusredhat : enterprise_linux_for_ibm_z_systems_eusredhat : enterprise_linux_for_ibm_z_systems_eusredhat : enterprise_linux_for_ibm_z_systems_eusredhat : enterprise_linux_for_ibm_z_systems_eusredhat : enterprise_linux_for_ibm_z_systems_eusredhat : enterprise_linux_for_power_big_endianredhat : enterprise_linux_for_power_big_endianredhat : enterprise_linux_for_power_big_endian_eusredhat : enterprise_linux_for_power_little_endianredhat : enterprise_linux_for_power_little_endianredhat : enterprise_linux_for_power_little_endian_eusredhat : enterprise_linux_for_power_little_endian_eusredhat : enterprise_linux_for_power_little_endian_eusredhat : enterprise_linux_for_power_little_endian_eusredhat : enterprise_linux_for_power_little_endian_eusredhat : enterprise_linux_for_power_little_endian_eusredhat : enterprise_linux_for_scientific_computingredhat : enterprise_linux_serverredhat : enterprise_linux_serverredhat : enterprise_linux_server_ausredhat : enterprise_linux_server_ausredhat : enterprise_linux_server_ausredhat : enterprise_linux_server_ausredhat : enterprise_linux_server_tusredhat : enterprise_linux_server_tusredhat : enterprise_linux_server_tusredhat : enterprise_linux_server_tusredhat : enterprise_linux_server_tusredhat : enterprise_linux_workstationredhat : enterprise_linux_workstation

Remediation Guidance

Executive Summary

View on NIST NVD