CVE-2006-5391

Xfire < 1.6.4 - Denial of Service via Long UDP String to Port 25777

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2006-5391. PoCs published by n00b.

AI-analyzed exploit summary This exploit sends a malformed UDP packet to Xfire client on port 25777, triggering a pure virtual function call exception (R6025) that crashes the application. The payload consists of a repeated 'A' pattern, demonstrating a denial-of-service vulnerability.

Description

Xfire 1.64 and earlier allows remote attackers to cause a denial of service (client application crash) via a long string to UDP port 25777.

Exploits (1)

exploitdb WORKING POC VERIFIED
by n00b · perldoswindows
https://www.exploit-db.com/exploits/2571

This exploit sends a malformed UDP packet to Xfire client on port 25777, triggering a pure virtual function call exception (R6025) that crashes the application. The payload consists of a repeated 'A' pattern, demonstrating a denial-of-service vulnerability.

Classification
Working Poc 100%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Xfire client version 1.64
No auth needed
Prerequisites: Target must have Xfire client running and accessible via UDP port 25777
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3
Core References
Exploit, Third Party Advisory exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/2571
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/20548
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/29602

Scores

EPSS 0.0290
EPSS Percentile 85.1%

Details

Status published
Products (1)
xfire/xfire < 1.6.4
Published Oct 18, 2006
Tracked Since Feb 18, 2026