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CRITICAL

CVE-2019-9020

CVSS v3

9.8

CRITICAL

EPSS Score

10.1 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • apcu-panelAlmaLinux:8all versions · fixed in 5.1.12-2.module_el8.3.0+2010+7c76a223and 1 other package
  • libzipAlmaLinux:8all versions · fixed in 1.5.1-2.module_el8.5.0+53+9945c2afand 2 other packages
  • phpAlmaLinux:8all versions · fixed in 7.2.24-1.module_el8.5.0+53+9945c2afand 9 other packages
  • php-dbaAlmaLinux:8all versions · fixed in 7.2.24-1.module_el8.3.0+2010+7c76a223and 6 other packages
  • php-gdAlmaLinux:8all versions · fixed in 7.2.24-1.module_el8.4.0+2228+7c76a223and 9 other packages
  • php-pearAlmaLinux:8all versions · fixed in 1:1.10.5-9.module_el8.3.0+2010+7c76a223
  • php-pecl-apcu-develAlmaLinux:8all versions · fixed in 5.1.12-2.module_el8.4.0+2228+7c76a223
  • php-pecl-zipAlmaLinux:8all versions · fixed in 1.15.3-1.module_el8.3.0+2010+7c76a223

Vendor advisories

  • CVE-2019-9020 Red Hat Product Security1,125 products fixed · 87 known affected

    php: Invalid memory access in function xmlrpc_decode()

    php.src as a component of Red Hat Enterprise Linux 5 · php as a component of Red Hat Enterprise Linux 6 · php-bcmath as a component of Red Hat Enterprise Linux 6

  • ICSA-26-027-02 CISA1 known affected

    Festo Didactic SE MES PC

    Festo Didactic SE MES PC shipped with Windows 10

  • RHSA-2020:1624 Red Hat Product Security275 products fixed

    Red Hat Security Advisory: php:7.2 security, bug fix, and enhancement update

  • RHSA-2019:3299 Red Hat Product Security425 products fixed

    Red Hat Security Advisory: rh-php72-php security update

  • RHSA-2019:2519 Red Hat Product Security425 products fixed

    Red Hat Security Advisory: rh-php71-php security, bug fix, and enhancement update

Full record on NVD

Description

An issue was discovered in PHP before 5.6.40, 7.x before 7.1.26, 7.2.x before 7.2.14, and 7.3.x before 7.3.1. Invalid input to the function xmlrpc_decode() can lead to an invalid memory access (heap out of bounds read or read after free). This is related to xml_elem_parse_buf in ext/xmlrpc/libxmlrpc/xml_element.c.

Technical details

Published
2019-02-22

Frequently asked questions

What is CVE-2019-9020?

An issue was discovered in PHP before 5.6.40, 7.x before 7.1.26, 7.2.x before 7.2.14, and 7.3.x before 7.3.1. Invalid input to the function xmlrpc_decode() can lead to an invalid memory access (heap out of bounds read or read after free). This is related to xml_elem_parse_buf in ext/xmlrpc/libxmlrpc/xml_element.c.

Is CVE-2019-9020 actively exploited?

Active exploitation of CVE-2019-9020 has not been confirmed. Its EPSS score was 10.1% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-9020?

CVE-2019-9020 has a CVSS v3 base score of 9.8 (CRITICAL severity).

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