CVE-2019-11043: PHP-FPM remote code execution via env_path_info buffer underflow

critical KEV Affects PHP engine. Feed 2026.10.29.1, updated 2026-10-28; published 2019-10-24; listed on CISA KEV 2022-03-25.

PHP-FPM remote code execution via env_path_info buffer underflow

Package: PHP engine PHP engine
Affected branches: 7.1 → fixed in 7.1.33; 7.2 → fixed in 7.2.24; 7.3 → fixed in 7.3.11
Severity: critical CVSS 9.8
Exploitation: KEV listed by CISA as actively exploited · ransomware campaigns · EPSS 100% (100.0th percentile)
Remediation: Upgrade to 7.3.11 / 7.2.24 / 7.1.33, or add a 'try_files $uri =404' guard to the FPM location.
Published: 2019-10-24

References

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