CVE-2019-11043
Underflow in PHP-FPM can lead to RCE
KEV RANSOMWARECRITICAL 9.8EPSS 99.7%
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
- PHP
- CVSS v3.1 NVD
- 9.8 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS v3.1 PHP
- 8.7 HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N - CVSS v2.0 NVD
- 7.5 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P - EPSS
- 99.75% chance of exploitation in the next 30 days, 100th percentile
- CISA KEV
- added 2022-03-25, used in ransomware campaigns
- Nuclei
- critical · CWE-119
- Published
- 2019-10-28
- Updated
- 2025-10-21
Proof-of-concept exploits (29)
- http://packetstormsecurity.com/files/156642/PHP-FPM-7.x-Remote-Code-Execution.html
- 0th3rs-Security-Team/CVE-2019-1104314★ · 2019-11-06
- AleWong/PHP-FPM-Remote-Code-Execution-Vulnerability-CVE-2019-11043-4★ · 2020-07-06
- B1gd0g/CVE-2019-110430★ · 2019-10-23
- MRdoulestar/CVE-2019-110433★ · 2019-11-06
- aaron3238/phpfpmexploit0★ · 2021-04-30
- akamajoris/CVE-2019-11043-Docker27★ · 2019-10-28
- alokaranasinghe/cve-2019-110430★ · 2020-05-12
- bayazid-bit/CVE-2019-11043-0★ · 2026-04-03
- corifeo/CVE-2019-110430★ · 2020-07-13
- fairyming/CVE-2019-110431★ · 2019-10-24
- huowen/CVE-2019-110435★ · 2019-10-30
- ianxtianxt/CVE-2019-110430★ · 2019-10-24
- ilikemunchingonwillys/kkk0★ · 2022-03-01
- jas502n/CVE-2019-11043105★ · 2020-08-20
- jas9reet/CVE-2019-110430★ · 2022-03-06
- k8gege/CVE-2019-1104316★ · 2019-11-11
- kriskhub/CVE-2019-1104314★ · 2020-05-25
- lindemer/CVE-2019-110434★ · 2020-11-20
- moniik/CVE-2019-11043_env1★ · 2019-11-17
- neex/phuip-fpizdam1835★ · 2019-11-12
- shadow-horse/cve-2019-110431★ · 2019-10-29
- theMiddleBlue/CVE-2019-11043147★ · 2019-10-29
- tinker-li/CVE-2019-110430★ · 2019-10-23
- ypereirareis/docker-CVE-2019-110438★ · 2019-10-30
- CodeHex083/phuip-fpizdam3★ · 2025-10-24
- MagentaBear/CVE-2019-11043-Vulnerability0★ · 2025-12-05
- bayazid-bit/CVE-2019-110430★ · 2026-04-03
- gon905332-jpg/cve-2019-11043.py0★ · 2025-12-12
Nuclei templates (1)
Metasploit modules (1)
ExploitDB entries (2)
Vulhub environments (1)
Security advisories
- https://bugs.php.net/bug.php?id=78599
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00011.html
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00014.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
- https://access.redhat.com/errata/RHSA-2019:3724
- https://access.redhat.com/errata/RHSA-2019:3735
- https://access.redhat.com/errata/RHSA-2019:3736
- https://access.redhat.com/errata/RHSA-2020:0322
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/…
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/…
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/…
- https://seclists.org/bugtraq/2020/Jan/44
- https://security.netapp.com/advisory/ntap-20191031-0003
- https://support.apple.com/kb/HT210919
- https://support.f5.com/csp/article/K75408500?utm_source=f5support&%3Butm_medium=RSS
- https://usn.ubuntu.com/4166-1
- https://usn.ubuntu.com/4166-2
- https://www.debian.org/security/2019/dsa-4552
- https://www.debian.org/security/2019/dsa-4553
- https://www.synology.com/security/advisory/Synology_SA_19_36
- https://www.tenable.com/security/tns-2021-14