CVE-2026-17545
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
PHP on Windows: Reserved Device Names Are Not Rejected Before File/Stream I/O which can cause DoS
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
PHP
- Vendor
- PHP Group
- Product
- PHP
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 8.2.* | affected | semver | 8.2.34 | Unavailable | None listed |
| 8.3.* | affected | semver | 8.3.35 | Unavailable | None listed |
| 8.4.* | affected | semver | 8.4.26 | Unavailable | None listed |
| 8.5.* | affected | semver | 8.5.11 | Unavailable | None listed |