UpHeron
All vulnerabilities

Servers and applications

CVE-2019-11043

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.

Actively exploited: CISA added it to its Known Exploited Vulnerabilities catalog on 25 Mar 2022.

Severity
Critical 9.8
Published
28 Oct 2019
Last changed
17 Jun 2026
Added to UpHeron
14 Oct 2026
Fixed in
7.1.33, 7.2.24, 7.3.11
Sources
NVD

Affected software

SoftwareAffected versions
PHPServers and applications · cpe:a:php:php
  • From 7.1.0 before 7.1.33
  • From 7.2.0 before 7.2.24
  • From 7.3.0 before 7.3.11

Known exploited

CISA name
PHP FastCGI Process Manager (FPM) Buffer Overflow Vulnerability
Required action
Apply updates per vendor instructions.
Due for US agencies
15 Apr 2022
Used in ransomware
Yes, known

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2019-11043
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2019-11043