EIP-2026-103629

PRE-CVE

PHP 4.4.4/5.1.6 - 'htmlentities()' Local Buffer Overflow (PoC)

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-103629. PoCs published by Nick Kezhaya.

AI-analyzed exploit summary This exploit leverages a UTF-8 character handling bug in PHP's htmlentities() function to trigger a Denial of Service (DoS). The code constructs a malformed UTF-8 string that causes the function to misbehave due to incorrect assumptions about character length.

Description

PHP 4.4.4/5.1.6 - 'htmlentities()' Local Buffer Overflow (PoC)

Exploits (1)

exploitdb WORKING POC VERIFIED
by Nick Kezhaya · phpdosmultiple
https://www.exploit-db.com/exploits/2857

This exploit leverages a UTF-8 character handling bug in PHP's htmlentities() function to trigger a Denial of Service (DoS). The code constructs a malformed UTF-8 string that causes the function to misbehave due to incorrect assumptions about character length.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: PHP (version not specified, likely older versions)
No auth needed
Prerequisites: PHP environment with vulnerable htmlentities() implementation
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026