CVE-2007-1649

PHP 5.2.1 - Heap Memory Disclosure via Serialized Data Input

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2007-1649. PoCs published by Stefan Esser.

AI-analyzed exploit summary This exploit demonstrates a PHP 5.2.1 unserialize() information leak vulnerability by crafting a malicious serialized string to dump heap memory contents. The PoC includes a protection line to prevent accidental execution and provides a detailed heap dump output.

Description

PHP 5.2.1 allows context-dependent attackers to read portions of heap memory by executing certain scripts with a serialized data input string beginning with S:, which does not properly track the number of input bytes being processed.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Stefan Esser · phplocalmultiple
https://www.exploit-db.com/exploits/3559

This exploit demonstrates a PHP 5.2.1 unserialize() information leak vulnerability by crafting a malicious serialized string to dump heap memory contents. The PoC includes a protection line to prevent accidental execution and provides a detailed heap dump output.

Classification
Working Poc 95%
Attack Type
Info Leak
Complexity
Moderate
Reliability
Reliable
Target: PHP 5.2.1
No auth needed
Prerequisites: PHP 5.2.1 environment · Ability to execute arbitrary PHP code
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (6)

Core 6
Core References
Release Notes x_refsource_confirm
http://us2.php.net/releases/5_2_2.php
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/33170
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/24630
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/23105
Vendor Advisory vendor-advisory x_refsource_mandriva
http://www.mandriva.com/security/advisories?name=MDVSA-2008:126

Scores

EPSS 0.0721
EPSS Percentile 93.5%

Details

Status published
Products (1)
php/php 5.2.1
Published Mar 24, 2007
Tracked Since Feb 18, 2026