PHP-CGI Argument Injection (CVE-2024-4577) for 2026-08-18
Aug 18, 2026
Exploitation
Last Updated: 00:00 UTC
CVE-2024-4577 lets an attacker pass command-line options to PHP-CGI on Windows by using a soft hyphen (%AD) that Windows best-fit mapping turns into a dash. Requests set allow_url_include and auto_prepend_file=php://input so the POST body runs as PHP. The RedTail cryptomining botnet (User-Agent libredtail-http) sprays this against every host it finds.
CVE References
MITRE ATT&CK
Tactic: Initial Access (TA0001)
Technique: T1190 — Exploit Public-Facing Application
Observed URIs
Attackers by Country
| United States | 2 | 40.0% |
| Bulgaria | 1 | 20.0% |
| Vietnam | 1 | 20.0% |
| United Kingdom | 1 | 20.0% |
IP Address : ASN : City/Provider
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107.173.241.217 : AS36352 HostPapa : Buffalo
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144.225.6.182 : AS7488 CNServer LLC : United States
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158.51.78.235 : AS209604 2e Telekomunikasyon Ltd Sti : Sofia
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42.119.42.249 : AS18403 FPT Telecom Company : Hanoi
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8.208.21.76 : AS45102 Alibaba (US) Technology Co., Ltd. : London