CVE-2011-5049

MySQL 5.5.8 - Denial of Service via Crafted Packet

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2011-5049. PoCs published by Level.

AI-analyzed exploit summary This exploit targets a null pointer dereference vulnerability in MySQL 5.5.8 on Windows, causing a denial-of-service (DoS) by sending malformed packets. The PoC sends two crafted buffers to trigger the crash.

Description

MySQL 5.5.8, when running on Windows, allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted packet to TCP port 3306.

Exploits (1)

exploitdb WORKING POC
by Level · pythondoswindows
https://www.exploit-db.com/exploits/18269

This exploit targets a null pointer dereference vulnerability in MySQL 5.5.8 on Windows, causing a denial-of-service (DoS) by sending malformed packets. The PoC sends two crafted buffers to trigger the crash.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: MySQL 5.5.8 (Windows)
No auth needed
Prerequisites: Network access to MySQL port (3306)
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (2)

Core 2
Core References
Exploit exploit x_refsource_exploit-db
http://www.exploit-db.com/exploits/18269
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/71965

Scores

EPSS 0.0453
EPSS Percentile 90.3%

Details

CWE
CWE-399
Status published
Published Jan 04, 2012
Tracked Since Feb 18, 2026