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VULNERABILITIES

CVE-2026-109619 Details

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).

Metrics

CVSS 3.x Severity and Vector Strings:

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://cert-portal.siemens.com/productcert/html/ssa-166980.html siemens-SADPThird Party Advisory
https://cert-portal.siemens.com/productcert/html/ssa-566435.html siemens-SADPThird Party Advisory
https://cert-portal.siemens.com/productcert/html/ssa-566512.html siemens-SADPThird Party Advisory
https://arcticwolf.com/resources/blog/php2shell-critical-php-vulnerabilities-enable-unauthenticated-remote-code-execution/ CISA-ADPThird Party Advisory
https://php2shell.delftintellab.com/ CISA-ADPThird Party Advisory

see all 19 references

This CVE is in CISA's Known Exploited Vulnerabilities Catalog

Reference CISA's BOD 22-01 and Known Exploited Vulnerabilities Catalog for further guidance and requirements.

Vulnerability NameDate AddedDue DateRequired Action
PHP Stale Internal Request-State VulnerabilityOct 26, 2026Oct 29, 2026Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Weakness Enumeration

CWE-IDCWE NameSource
CWE-1325Improperly Controlled Sequential Memory Allocation[email protected]
CWE-416Use After Free[email protected]
CWE-755Improper Handling of Exceptional Conditions[email protected]
CWE-824Access of Uninitialized Pointer[email protected]

Affected Products

ProductVersions

Change History

24 change records found show changes


QUICK INFO

CVE Dictionary Entry:
CVE-2026-109619
NVD Published Date:
Oct 21, 2026
NVD Last Modified:
Nov 5, 2026
Source:
[email protected]
CVE-2026-109619 Details - Not Deferred