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…
Browse: All 2019 CVEs · All vendors
- CVSS score
- 8.7 High
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N- CISA KEV
- Yes — actively exploited (added 2022-03-25, remediation due 2022-04-15)
- Ransomware
- Known ransomware campaign use
- Weakness (CWE)
- CWE-120, CWE-787
- Published
- 2019-10-28
- Last modified
- 2026-06-17
- NVD status
- Analyzed
Description
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.
Affected products
- php php
- canonical ubuntu linux
- debian debian linux
- fedoraproject fedora
- tenable tenable.sc
- redhat software collections
- redhat enterprise linux
- redhat enterprise linux desktop
- redhat enterprise linux eus
- redhat enterprise linux eus compute node
- redhat enterprise linux for arm 64
- redhat enterprise linux for arm 64 eus
Affected ranges per NVD CPE data; confirm exact versions in the vendor advisory.
Required action (CISA)
Apply updates per vendor instructions. Federal remediation deadline: 2022-04-15.
How to prioritize this
This vulnerability is on the CISA KEV list, meaning it is being actively exploited — treat it as urgent regardless of the raw CVSS number. Use the live CVE lookup for the latest NVD data, and the CVSS 3.1 calculator to model your own environmental score. For the actively exploited vulnerabilities that matter this week, read The Exploit HQ daily security brief.
References
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00011.html
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00014.html
- http://packetstormsecurity.com/files/156642/PHP-FPM-7.x-Remote-Code-Execution.html
- http://seclists.org/fulldisclosure/2020/Jan/40
- https://access.redhat.com/errata/RHSA-2019:3286
- https://access.redhat.com/errata/RHSA-2019:3287
- https://access.redhat.com/errata/RHSA-2019:3299
- https://access.redhat.com/errata/RHSA-2019:3300
FAQ
Is CVE-2019-11043 actively exploited?
Yes. CISA added CVE-2019-11043 to its Known Exploited Vulnerabilities (KEV) catalog on 2022-03-25, with a federal remediation deadline of 2022-04-15. A KEV listing means real-world exploitation is confirmed, so patching this should be prioritized above many higher-CVSS bugs that aren't being exploited.
What is the CVSS score of CVE-2019-11043?
CVE-2019-11043 has a CVSS base score of 8.7 (High). Its vector string is CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N.
Related vulnerabilities
- CVE-2016-10033 — PHP PHPMailer
- CVE-2012-1823 — PHP PHP
- CVE-2025-43520 — Apple Multiple Products
- CVE-2025-31277 — Apple Multiple Products
- CVE-2022-37055 — D-Link Routers
- CVE-2025-20333 — Cisco Secure Firewall Adaptive Security Ap
Data source: NVD & CISA KEV. Shown as-is; nothing added. Last generated from NVD data — re-check the live tool for updates.
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