@DodgeTheQuestion: No, it does not.
No intention to dodge the question here. I pointed to the lifecycle policy docs. The FAQ indicates that non-security hotfix support "Requires extended hotfix agreement, purchased within 90 days of mainstream support ending."
I've also linked to the http://blogs.technet.com/b/exchange/archive/2012/04/16/released-update-rollup-7-for-exchange-2007-service-pack-3.aspx
Exchange 2007 SP3 RU7 release post from April 2012, which includes the following support statement:
Support lifecycle statement: This is the final release under standard support for Exchange 2007, as the Exchange 2007 Mainstream Support has now ended. Extended Support for Exchange 2007
SP3 will end on 4/11/2017. Please see the http://support.microsoft.com/lifecycle/search/default.aspx?sort=PN&alpha=Exchange+Server+2007&Filter=FilterNO
Microsoft Support Lifecycle page for more information about Microsoft Support Lifecycle for Exchange 2007. Got questions about Microsoft Support Lifecycle Policy? Head over to
http://support.microsoft.com/gp/lifepolicy.
To be clear, only security-related fixes are provided when a product is on extended support, unless you have an extended hotfix agreement. IE11 support in Exchange 2007 is an example of a fix that isn't security-related, and would require an extended hotfix
agreement.