Vulnerability

CVE-2026-17545

Descriptive record received from OpenCTI and minimised for consultation in the Intel portal.

Sharing: PUBLIC-OSINT
Confidence: 100
Source: The CVE Program
Updated: 26/09/2026 01:58

Description

On Windows, PHP's filesystem and stream APIs do not reject reserved device names such as CON, PRN, AUX, NUL, COM1 to COM9, LPT1 to LPT9, CONIN$ and CONOUT$ when they appear as a component of a path. An attacker-controlled filename therefore reaches CreateFileW() and opens a device instead of the regular file the application expected, which can block or hang the request and exhaust worker processes.

STIX identifiervulnerability--0e7bb404-707b-55cf-ae2e-8fb254bce8c7

First observation-

Last observation-

Known relationships8

Aliases and classifications

CWE-67Improper Handling of Windows Device Names

Minimised technical details

No raw data

cisa kev: False

Provenance

Public references

vendor-advisory
https://github.com/php/php-src/security/advisories/GHSA-9f67-6fw4-hpfp

EudorIA correlation

Intel catalogue

The vulnerability is also available in the EudorIA editorial catalogue.

Open EudorIA analysis

Presence in OpenCTI describes an intelligence correlation and does not, by itself, constitute evidence of compromise, legal attribution or operational guidance applicable without context verification.