RCE via OOM corruption (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 uses longjmp() for out-of-memory (OOM) errors to exit the current context and abort handling of the request. Some contexts may not properly account for this scenario and leave request memory in an uninitialized state before performing an allocation. The subsequent request cleanup procedure may read or branch on this memory. Multiple OOM strategies can consistently trigger this condition and lead to 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-w8hw-w9fx-j79w
- https://www.wiz.io/blog/php2shell-php-rce
- https://arcticwolf.com/resources/blog/php2shell-critical-php-vulnerabilities-enable-unauthenticated-remote-code-execution/
- https://php2shell.delftintellab.com
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-109618
- http://www.openwall.com/lists/oss-security/2026/10/21/6
- http://www.openwall.com/lists/oss-security/2026/10/23/5
- http://seclists.org/fulldisclosure/2026/Oct/51
- 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 | CRITICAL 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2026-107260
- GCVE · GCVE-0-2026-109618
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:*:*:*:*:*:*:*:*≥ 7.3.0 < 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 |