Vulnerability Report

CVE-2011-5129

Title: Xchat RCE

Memory Corruption

Proof Of Concept

PoC Available for CVE-2011-5129

CWE Category CWE-119

Published Date Aug 30, 2012

Modified Date Jun 16, 2026

Exploit Status Available

Score 5.0 CVSS v2.0

Exploit Probability (EPSS)

7.70%

Vulnerability Summary

CVE-2011-5129: Heap-based buffer overflow in XChat 2.8.9 and earlier allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a long response string.

Impacted Vendors

xchat 1

Reference Links

http://packetstormsecurity.org/files/107312/xchat-dos.txt http://www.exploit-db.com/exploits/18159 http://www.osvdb.org/77629 http://www.securityfocus.com/bid/50820 http://www.securitytracker.com/id?1027468 http://packetstormsecurity.org/files/107312/xchat-dos.txt http://www.exploit-db.com/exploits/18159 http://www.osvdb.org/77629 http://www.securityfocus.com/bid/50820 http://www.securitytracker.com/id?1027468

CVSS v2.0

Source Entity [email protected]

Severity MEDIUM

5.0

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:N/AC:L/Au:N/C:N/I:N/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2011-5129 Exploits & PoCs (Proof Of Concept)

Exploit-DB https://www.exploit-db.com/exploits/18159

View Code

June 16, 2026 MODIFIED

Vulnerability data updated via NVD.

April 29, 2026 MODIFIED

Vulnerability data updated via NVD.

April 11, 2025 MODIFIED

Vulnerability data or affected products updated.

August 30, 2012 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector N/A

Complexity N/A

Privileges N/A

Interaction NONE

CVSS Vector String


                                    AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected Stack

No specific products linked.