Overview
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.
https://nvd.nist.gov/vuln/detail/CVE-2019-11043
Key Details
| Property | Value |
|---|---|
| CVE ID | CVE-2019-11043 |
| Vendor / Product | PHP — FastCGI Process Manager (FPM) |
| NVD Published | 2019-10-28 |
| NVD Last Modified | 2025-11-03 |
| CVSS 3.1 Score | 8.7 |
| CVSS 3.1 Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N |
| Severity | HIGH |
| CWE | CWE-120 |
| CISA KEV Added | 2022-03-25 |
| CISA KEV Deadline | 2022-04-15 |
| Known Ransomware Use | ⚠️ Yes |
CVSS 3.1 Breakdown
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None
Required Action
CISA BOD 22-01 Deadline: 2022-04-15.
Apply updates per vendor instructions.
Timeline
| Date | Event |
|---|---|
| 2022-03-25 | Added to CISA Known Exploited Vulnerabilities catalog |
| 2022-04-15 | CISA BOD 22-01 remediation deadline |
References
| Resource | Type |
|---|---|
| NVD — CVE-2019-11043 | Vulnerability Database |
| CISA KEV Catalog Entry | US Government |