Vulnerability Intelligence Report
Underflow in PHP-FPM can lead to RCE
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.
CISA KEV
Nuclei Template
SSVC: Active Exploitation
CVSS Base Score
8.7
HIGH
Exploitability:2.3
Impact Score:5.8
EPSS Probability:99.47%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-120 ↗CWE-120 Buffer Overflow
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| PHP | PHP | 7.1.x < 7.1.33 (affected), 7.2.x < 7.2.24 (affected), 7.3.x < 7.3.11 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
CISA KEV
ACTIVE IN CATALOG
Nuclei Template
SCANNER AVAILABLE
EPSS Score
99.470%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | PHP Group · Vendor · USA |
| Reserved | 2019-04-09T00:00:00 |
| Published | 2019-10-28T14:19:04 |
| Patch Date | 2019-10-22 |
| Last Updated | 2025-10-21T23:45:28 |
Community Chatter & Buzz