Yahoo! Messenger YVerInfo ActiveX Buffer Overflows

High Nessus Plugin ID 25955


The remote Windows host has an ActiveX control that is affected by multiple buffer overflow vulnerabilities.


The remote host contains the 'YVerInfo' ActiveX control, distributed as part of the Yahoo! services suite typically downloaded with the installer for Yahoo! Messenger.

The version of this control installed on the remote host reportedly contains buffer overflows involving its 'fvCom' and 'info' methods.
If an attacker can trick a user on the affected host into visiting a specially crafted web page, this issue could be leveraged to execute arbitrary code on the host subject to the user's privileges.


Either disable the use of this ActiveX control from within Internet Explorer by setting its kill bit or upgrade to Yahoo! Messenger version (version 2007.8.27.1 of the YVerInfo control itself) or later.

See Also

Plugin Details

Severity: High

ID: 25955

File Name: yahoo_msgr_yverinfo_activex_overflow.nasl

Version: $Revision: 1.19 $

Type: local

Agent: windows

Family: Windows

Published: 2007/08/30

Modified: 2017/06/12

Dependencies: 13855

Risk Information

Risk Factor: High


Base Score: 9.3

Temporal Score: 7.7

Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C

Temporal Vector: CVSS2#E:F/RL:OF/RC:C

Vulnerability Information

CPE: cpe:/a:yahoo:messenger

Required KB Items: SMB/Registry/Enumerated

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2007/08/29

Vulnerability Publication Date: 2007/08/29

Exploitable With

Metasploit (Yahoo! Messenger YVerInfo.dll ActiveX Control Buffer Overflow)

Reference Information

CVE: CVE-2007-4515

BID: 25494

OSVDB: 37739

CWE: 119