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CVE-2015-10141

CriticalPublished

Xdebug Remote Debugger Unauthenticated OS Command Execution

Published: Jul 23, 2025
Updated: May 15, 2026
Assigning CNA: VulnCheck
Evidence observed: Aug 8, 2026

Primary CVSS

9.3/ 10Critical

nvd · CVSS 4.0

CVSS:4.0/AV:N/AC:L/AT:N/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

EPSS probability estimate

7.4%

Low · next 30 days

Percentile: 94.2%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

An unauthenticated OS command injection vulnerability exists within Xdebug versions 2.5.5 and earlier, a PHP debugging extension developed by Derick Rethans. When remote debugging is enabled, Xdebug listens on port 9000 and accepts debugger protocol commands without authentication. An attacker can send a crafted eval command over this interface to execute arbitrary PHP code, which may invoke system-level functions such as system() or passthru(). This results in full compromise of the host under the privileges of the web server user.

Sources

CVE-2015-10141Exploit
POC exploit for CVE-2015-10141
CVE-2015-10141PoC
PoC for CVE-2015-10141 – Xdebug unauthenticated RCE
PoC-CVE-2015-10141-XdebugExploit
Proof-of-Concept exploit script for Xdebug 2.5.5 and earlier versions (CVE-2015-10141).

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