Vulnerability Report

CVE-2003-1135

Title: Yahoo! Messenger buffer overflow DoS

Memory Corruption

Proof Of Concept

PoC Available for CVE-2003-1135

CWE Category NVD-CWE-noinfo

Published Date Dec 31, 2003

Modified Date Jun 16, 2026

Exploit Status Available

Score 2.6 CVSS v2.0

Exploit Probability (EPSS)

4.52%

Vulnerability Summary

CVE-2003-1135: Buffer overflow in Yahoo! Messenger 5.6 allows remote attackers to cause a denial of service (crash) via a file send request (sendfile) with a large number of "%" (percent) characters after the Yahoo ID.

Impacted Vendors

yahoo 1

relatedcode 1

Reference Links

http://www.securityfocus.com/archive/1/342472 http://www.securityfocus.com/bid/8894 http://www.securityfocus.com/archive/1/342472 http://www.securityfocus.com/bid/8894

CVSS v2.0

Source Entity [email protected]

Severity LOW

2.6

Access Vector

N/A

Authentication

N/A

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

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2003-1135 Exploits & PoCs (Proof Of Concept)

Exploit-DB https://www.exploit-db.com/exploits/23293

View Code

June 16, 2026 MODIFIED

Vulnerability data updated via NVD.

April 03, 2025 MODIFIED

Vulnerability data or affected products updated.

December 31, 2003 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:H/Au:N/C:N/I:N/A:P

Affected Stack

No specific products linked.