CVE-2006-1549

PHP 4.4.2 and 5.1.2 - Denial of Service via Recursive Function Execution

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2006-1549. PoCs published by Maksymilian Arciemowicz.

AI-analyzed exploit summary This exploit leverages a denial-of-service vulnerability in PHP by sending a crafted request with a large string payload, causing PHP to crash and terminate webserver threads. The attack is executed via a command injection in a curl request.

Description

PHP 4.4.2 and 5.1.2 allows local users to cause a crash (segmentation fault) by defining and executing a recursive function. NOTE: it has been reported by a reliable third party that some later versions are also affected.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Maksymilian Arciemowicz · textdosphp
https://www.exploit-db.com/exploits/29693

This exploit leverages a denial-of-service vulnerability in PHP by sending a crafted request with a large string payload, causing PHP to crash and terminate webserver threads. The attack is executed via a command injection in a curl request.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: PHP (all versions)
No auth needed
Prerequisites: Ability to send HTTP requests to the target server
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (13)

Core 13
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/25704
Exploit, Third Party Advisory third-party-advisory x_refsource_sreason
http://securityreason.com/securityalert/676
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/430453/100/0/threaded
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/22766
Exploit, Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://securitytracker.com/id?1015880
Exploit, Third Party Advisory third-party-advisory x_refsource_sreasonres
http://securityreason.com/achievement_securityalert/35
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/430598/100/0/threaded
Permissions Required, Third Party Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2006/1290
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/430742/100/0/threaded
Exploit, Third Party Advisory third-party-advisory x_refsource_sreason
http://securityreason.com/securityalert/2312
Broken Link vdb-entry x_refsource_osvdb
http://www.osvdb.org/24485
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/431018/100/0/threaded
Third Party Advisory x_refsource_misc
http://www.php-security.org/MOPB/MOPB-02-2007.html

Scores

EPSS 0.0086
EPSS Percentile 53.8%

Details

CWE
CWE-399
Status published
Products (2)
php/php 4.4.2
php/php 5.1.2
Published Apr 10, 2006
Tracked Since Feb 18, 2026