FYI, this is what I got back from Cisco support:
Due to the severity of bug CSCur90751, the affected IPS releases, 7.1.9 and 7.3.3, have been removed from CCO as of March 18, 2015. I have checked this information internally. Please let me know if You have any questions.
Update plans:
7.3: Update for CSCur90751 will be delivered in 7.3(4) release. ETA mid-April.
7.1: Update for CSCur90751 and CSCur79456 will be delivered together. Not clear yet if that will be a 7.1.9 patch release, or 7.1.10.