CISA-confirmed known exploited vulnerability

CVE-2019-11043

PHP FastCGI Process Manager (FPM) Buffer Overflow Vulnerability

PHP · FastCGI Process Manager (FPM)

Vulnerability details

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.

Added to CISA KEV: 2022-03-25

Ransomware campaign use: Known

CISA due date: 2022-04-15

Defensive guidance from CISA

Apply updates per vendor instructions.

This is the source's required-action field, not an independently validated patch procedure. Refer to the vendor for exact affected versions and fixes.

Source catalog date: 2026-11-06T19:44:45.1797Z · Last retrieved: 2026-11-06 21:02:26 UTC

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