RCE via stale global state (PHP Group PHP)
At a glance
- Source
- NVD
- EPSS
- EPSS 100.00 % · percentile 100 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- php
- NVD status
- Undergoing Analysis
Description
PHP has various global state that temporarily points into request memory. In some scenarios, global state may not be correctly reset, or may be repopulated after being reset. The global state may then refer to request memory even after it has been freed. Subsequent requests may read or branch on this stale state before it is fully initialized. Multiple strategies can trigger this condition and produce remote code execution (RCE).
Weaknesses (CWE)
- CWE-416 — Use After Free
- CWE-755 — Improper Handling of Exceptional Conditions
- CWE-824 — Access of Uninitialized Pointer
- CWE-1325 — Improperly Controlled Sequential Memory Allocation
- CWE-1419 — Incorrect Initialization of Resource
References
- https://github.com/php/php-src/security/advisories/GHSA-6wmf-4rv5-p3rp
- https://www.wiz.io/blog/php2shell-php-rce
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-109619
- https://php2shell.delftintellab.com/
- https://arcticwolf.com/resources/blog/php2shell-critical-php-vulnerabilities-enable-unauthenticated-remote-code-execution/
- http://www.openwall.com/lists/oss-security/2026/10/21/7
- http://www.openwall.com/lists/oss-security/2026/10/21/16
- http://www.openwall.com/lists/oss-security/2026/10/21/17
- http://www.openwall.com/lists/oss-security/2026/10/21/23
- http://www.openwall.com/lists/oss-security/2026/10/22/2
- http://www.openwall.com/lists/oss-security/2026/10/22/14
- http://www.openwall.com/lists/oss-security/2026/10/22/15
- http://www.openwall.com/lists/oss-security/2026/10/22/16
- http://www.openwall.com/lists/oss-security/2026/10/22/19
- http://www.openwall.com/lists/oss-security/2026/10/22/20
- http://www.openwall.com/lists/oss-security/2026/10/23/4
- https://cert-portal.siemens.com/productcert/html/ssa-566512.html
- https://cert-portal.siemens.com/productcert/html/ssa-566435.html
- https://cert-portal.siemens.com/productcert/html/ssa-166980.html
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 4.0 | CRITICAL 9.2 | CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | php |
| CVSS 4.0 | CRITICAL 9.2 | CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X | NVD · security@php.net (Secondary) |
| CVSS 3.1 | HIGH 8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2026-107265
- GCVE · GCVE-0-2026-109619
CERT-FR advisories
- CERTFR-2026-AVI-1433 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1402 — Multiples vulnérabilités dans Palo Alto Networks PAN-OS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1394 — Multiples vulnérabilités dans Citrix NetScaler ADC et Gateway · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1381 — Multiples vulnérabilités dans les produits Tenable · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1370 — Multiples vulnérabilités dans les produits Tenable · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1369 — Multiples vulnérabilités dans les produits HPE Aruba Networking · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1360 — Multiples vulnérabilités dans les produits Cisco · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1359 — Multiples vulnérabilités dans PHP · cert.ssi.gouv.fr
- CERTFR-2026-ALE-014 — [Mà j] Multiples vulnérabilités dans PHP · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*≥ 5.4.0 < 8.2.35cpe:2.3:a:php:php:*:*:*:*:*:*:*:*≥ 8.3.0 < 8.3.36cpe:2.3:a:php:php:*:*:*:*:*:*:*:*≥ 8.4.0 < 8.4.27cpe:2.3:a:php:php:*:*:*:*:*:*:*:*≥ 8.5.0 < 8.5.12cpe:2.3:o:siemens:ruggedcom_ape1808_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*≥ 10.2.0 < 10.2.7cpe:2.3:o:paloaltonetworks:pan-os:10.2.7:-:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:10.2.7:h1:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:10.2.7:h10:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:10.2.7:h11:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:10.2.7:h12:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:10.2.7:h13:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:10.2.7:h14:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:10.2.7:h15:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:10.2.7:h16:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:10.2.7:h17:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:10.2.7:h18:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:10.2.7:h19:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:10.2.7:h2:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:10.2.7:h20:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:10.2.7:h21:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:10.2.7:h22:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:10.2.7:h23:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:10.2.7:h24:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:10.2.7:h3:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:10.2.7:h32:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:10.2.7:h34:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:10.2.7:h35:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:10.2.7:h36:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:10.2.7:h37:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:10.2.7:h38:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:10.2.7:h4:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:10.2.7:h5:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:10.2.7:h6:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:10.2.7:h7:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:10.2.7:h8:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:10.2.7:h9:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:10.2.8:*:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:10.2.9:*:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:10.2.10:-:*:*:*:*:*:*- +258 more
Affected products
| Product | Versions |
|---|---|
| PHP Group · PHP | affected 8.2.* < 8.2.35 ; affected 8.3.* < 8.3.36 ; affected 8.4.* < 8.4.27 ; affected 8.5.* < 8.5.12 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| CISA Known Exploited Vulnerabilities | CC0 1.0 |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |