Multiple flaws in commonly used technical support tools can open Windows PCs to cyberattack, security experts have warned.

The vulnerable tools are often used by Internet service
providers, PC makers and others to provide support functions such as
remote assistance, the U.S. Computer Emergency Readiness Team said in an alert published Thursday. The tools, provided by SupportSoft, contain multiple vulnerabilities, it warned.

US-CERT lists nearly 40 companies and other organizations that
have shipped the affected software. Some have addressed the problem,
while others are still listed as vulnerable or unknown. Those that have
yet to fix the SupportSoft issue include IBM and Internet access
providers BellSouth, Comcast and Time Warner, it said.

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