Buffer overflow in the Yahoo! Webcam Upload ActiveX control in ywcupl.dll 2.0.1.4 for Yahoo! Messenger 8.1.0.249 allows remote attackers to execute arbitrary code via a long server property value to the send method. NOTE: some of these details are obtained from third party information.

Buffer overflow in Yahoo! Messenger 8.1 allows user-assisted remote authenticated users, who are listed in an address book, to execute arbitrary code via unspecified vectors, aka ZD-00000005. NOTE: this information is based upon a vague advisory by a vulnerability information sales organization that does not coordinate with vendors or release actionable advisories. A CVE has been assigned for tracking purposes, but duplicates with other CVEs are difficult to determine.

Buffer overflow in the Yahoo! Webcam Viewer ActiveX control in ywcvwr.dll 2.0.1.4 for Yahoo! Messenger 8.1.0.249 allows remote attackers to execute arbitrary code via a long server property value to the receive method.

Buffer overflow in Yahoo! Messenger 8.1 allows user-assisted remote authenticated users to execute arbitrary code via a long e-mail address in an address book entry. NOTE: this might overlap CVE-2007-3638.

Stack-based buffer overflow in the YDPCTL.YDPControl.1 (aka Yahoo! Installer Plugin for Widgets) ActiveX control before 2007.7.13.3 (20070620) in YDPCTL.dll in Yahoo! Widgets before 4.0.5 allows remote attackers to execute arbitrary code via a long argument to the GetComponentVersion method. NOTE: some of these details are obtained from third party information.

Heap-based buffer overflow in Kakadu kdu_v32m.dll in Yahoo! Messenger 8.1.0.413 allows remote attackers to cause a denial of service (application crash) via a certain length field in JPEG2000 data, as demonstrated by sending an "invite to view my webcam" request, and then injecting a DLL into the attacker's peer Yahoo! Messenger application when this request is accepted.

Buffer overflow in a certain ActiveX control in YVerInfo.dll before 2007.8.27.1 in the Yahoo! services suite for Yahoo! Messenger before 8.1.0.419 allows remote attackers to execute arbitrary code via unspecified vectors involving arguments to the (1) fvCom and (2) info methods. NOTE: some of these details are obtained from third party information.

Yahoo! Messenger for WAP permits saving messages that contain JavaScript, which allows user-assisted remote attackers to inject arbitrary web script or HTML via a URL at the online service.

Buffer overflows in Yahoo! Messenger 5,0,0,1064 and earlier allows remote attackers to execute arbitrary code via a ymsgr URI with long arguments to (1) call, (2) sendim, (3) getimv, (4) chat, (5) addview, or (6) addfriend.

Yahoo! Messenger 5,0,0,1064 and earlier allows remote attackers to execute arbitrary script as other users via the addview parameter of a ymsgr URI.

Buffer overflow in Yahoo! Messenger 5.0 allows remote attackers to cause a denial of service and possibly execute arbitrary code via a long (1) message or (2) IMvironment field.

Yahoo! Messenger 5.0 allows remote attackers to spoof other users by modifying the username and using the spoofed username for social engineering or denial of service (flooding) attacks.

Yahoo! Messenger 4.0 sends user passwords in cleartext, which could allow remote attackers to gain privileges of other users via sniffing.

Yahoo! Messenger before February 2002 allows remote attackers to add arbitrary users to another user's buddy list and possibly obtain sensitive information.

Buffer overflow in Yahoo! Messenger before February 2002 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a long set_buddygrp field.

The installer in Yahoo! Messenger 4.0, 5.0 and 5.5 does not verify package signatures which could allow remote attackers to install trojan programs via DNS spoofing.

Buffer overflow in the Yahoo! Audio Conferencing (aka Voice Chat) ActiveX control before 1,0,0,45 allows remote attackers to cause a denial of service and possibly execute arbitrary code via a URL with a long hostname to Yahoo! Messenger or Yahoo! Chat.

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.

Buffer overflow in Yahoo Instant Messenger 5.6.0.1351 and earlier allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a long filename in the download feature.

The Audio Setup Wizard (asw.dll) in Yahoo! Messenger 6.0.0.1750, and possibly other versions, allows attackers to arbitrary code by placing a malicious ping.exe program into the Messenger program directory, which is installed with weak default permissions.