Heap-based buffer overflow in the tvtumin.sys kernel driver in Lenovo Rescue and Recovery 4.20, including 4.20.0511 and 4.20.0512, allows local users to execute arbitrary code via a long file name.
The client in Lenovo System Update before 3.14 does not properly validate the certificate when establishing an SSL connection, which allows remote attackers to install arbitrary packages via an SSL certificate whose X.509 headers match a public certificate used by IBM.
The IBM Lenovo Access Support acpRunner ActiveX control, as distributed in acpcontroller.dll before 1.2.8.0 and possibly acpir.dll before 1.0.0.9 (Automated Solutions 1.0 before fix pack 1), does not properly validate digital signatures of downloaded software, which makes it easier for remote attackers to spoof a download.
Format string vulnerability in the IBM Lenovo Access Support acpRunner ActiveX control, as distributed in acpcontroller.dll before 1.2.8.0 and possibly acpir.dll before 1.0.0.9 (Automated Solutions 1.0 before fix pack 1), allows remote attackers to execute arbitrary code via format string specifiers in unknown data.
The IBM Lenovo Access Support acpRunner ActiveX control, as distributed in acpcontroller.dll before 1.2.8.0 and possibly acpir.dll before 1.0.0.9 (Automated Solutions 1.0 before fix pack 1), exposes unsafe methods to arbitrary web domains, which allows remote attackers to download arbitrary code onto a client system and execute this code.
Unspecified vulnerability in Lenovo Intel PRO/1000 LAN adapter before Build 135400, as used on IBM Lenovo ThinkPad systems, has unknown impact and attack vectors.