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CRITICAL

CVE-2019-11039

CVSS v3

9.1

CRITICAL

EPSS Score

3.1 %

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 5.1.17-1.module_el8.3.0+2009+b272fdef
  • libzipAlmaLinux:8all versions · fixed in 1.5.2-1.module_el8.4.0+2229+b272fdef
  • libzip-develAlmaLinux:8all versions · fixed in 1.5.2-1.module_el8.5.0+152+112d3b8c
  • libzip-toolsAlmaLinux:8all versions · fixed in 1.5.2-1.module_el8.3.0+2009+b272fdef
  • phpAlmaLinux:8all versions · fixed in 7.3.20-1.module_el8.3.0+2009+b272fdefand 7 other packages
  • php-dbaAlmaLinux:8all versions · fixed in 7.3.20-1.module_el8.4.0+2229+b272fdefand 9 other packages
  • php-gdAlmaLinux:8all versions · fixed in 7.3.20-1.module_el8.5.0+152+112d3b8cand 8 other packages
  • php-pearAlmaLinux:8all versions · fixed in 1:1.10.9-1.module_el8.3.0+2009+b272fdef

5 more package ranges on OSV.dev

Vendor advisories

  • CVE-2019-11039 Red Hat Product Security1,426 products fixed · 58 known affected

    php: Out-of-bounds read due to integer overflow in iconv_mime_decode_headers()

    php as a component of Red Hat Enterprise Linux 7 · php-bcmath as a component of Red Hat Enterprise Linux 7 · php-cli as a component of Red Hat Enterprise Linux 7

  • ICSA-26-027-02 CISA1 known affected

    Festo Didactic SE MES PC

    Festo Didactic SE MES PC shipped with Windows 10

  • RHSA-2020:3662 Red Hat Product Security301 products fixed

    Red Hat Security Advisory: php:7.3 security, bug fix, and enhancement update

  • 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

Function iconv_mime_decode_headers() in PHP versions 7.1.x below 7.1.30, 7.2.x below 7.2.19 and 7.3.x below 7.3.6 may perform out-of-buffer read due to integer overflow when parsing MIME headers. This may lead to information disclosure or crash.

Technical details

Published
2019-06-19

Frequently asked questions

What is CVE-2019-11039?

Function iconv_mime_decode_headers() in PHP versions 7.1.x below 7.1.30, 7.2.x below 7.2.19 and 7.3.x below 7.3.6 may perform out-of-buffer read due to integer overflow when parsing MIME headers. This may lead to information disclosure or crash.

Is CVE-2019-11039 actively exploited?

Active exploitation of CVE-2019-11039 has not been confirmed. Its EPSS score was 3.1% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-11039?

CVE-2019-11039 has a CVSS v3 base score of 9.1 (CRITICAL severity).

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