Do you use Windows? How about Internet Explorer? What the heck- do you have any Microsoft operating systems or applications on your computer? OK. Suffice it to say you are virtually guaranteed to be affected by the October Patch Tuesday.
Microsoft unloaded a barrage of 13 Security Bulletins addressing 34 different flaws- a record for a single Patch Tuesday (woo hoo?). Eight of the Security Bulletins are rated as Critical, with the remaining 5 labeled as Important.
Adobe joined the party as well, rolling out updates to address 29 flaws in Adobe Acrobat and the popular Acrobat Reader application. As Microsoft software security has improved, attackers have sought out alternative attack vectors and Adobe is arguably the leading alternative source of exploitable vulnerabilities.
Make sure you have Automatic Updates enabled, or check out the resources linked above to find out more information about the multitude of flaws and what you need to do to patch and protect your system.