PHP-CGI Argument Injection (CVE-2024-4577) for 2026-10-05

Oct 05, 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

CVE-2024-4577

MITRE ATT&CK

Tactic: Initial Access (TA0001)
Technique: T1190 — Exploit Public-Facing Application

Observed URIs

Attackers by Country

United States: 6Singapore: 3Belgium: 2Taiwan: 2Japan: 2Brazil: 2Indonesia: 1Seychelles: 1Germany: 1Canada: 1The Netherlands: 1
United States627.3%
Singapore313.6%
Belgium29.1%
Taiwan29.1%
Japan29.1%
Brazil29.1%
Indonesia14.5%
Seychelles14.5%
Germany14.5%
Canada14.5%
The Netherlands14.5%

IP Address : ASN : City/Provider

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