Intel's AMT remote vulnerability

The fears of vulnerabilities lurking in Intel's "management engine"technology have just shown some validity: Intel has announceda remotely exploitable vulnerability in it's "active management technology"engine. "There is an escalation of privilege vulnerability in IntelActive Management Technology (AMT), Intel Standard Manageability (ISM),and Intel Small Business Technology versions firmware versions 6.x, 7.x,8.x 9.x, 10.x, 11.0, 11.5, and 11.6 that can allow an unprivileged attackerto gain control of the manageability features provided by these products.This vulnerability does not exist on Intel-based consumer PCs."

See Matthew Garrett'swriteup for a more comprehensible summary of what is known at this time.