Corbett, interviewed Monday morning on WWIQ (106.9-FM), said that Kane "has no idea" about the facts in the Sandusky case.
"To make those statements without any facts in front of her, without having any information about what went on in the office, that was a reckless disregard for the truth on her part," said Corbett, denying that campaign contributions had influenced his actions.
Kane later said that Corbett's claims were an attempt to "divert" attention from the fact that his investigation of Sandusky took nearly three years.
Kane said that as a former prosecutor and a mother, she was "very shocked that a predator, a pedophile, was left on the streets for three years around children."
Sandusky, 69, convicted in June of 45 counts of sexual abuse of 10 minors, will be sentenced next Tuesday.
Kane spoke at a news conference with 12 former prosecutors, including former Gov. Ed Rendell, former Philadelphia District Attorney Lynne Abraham and the Democratic candidates for state attorney general in 2000, 2004 and 2008.
They called on Freed to ask the Republican State Leadership Committee to stop running ads that they said distort Kane's record on rape cases when she was an assistant district attorney in Lackawanna County.
"This ad and the campaign behind it is a terrible, dreadful act," Abraham said. "It is character assassination without any facts behind it whatsoever."
The original version of the ad claimed that Kane "went soft" on two rape cases. Kane and the Lackawanna County District Attorney's Office said that she played almost no role in those cases.
A revised version of the ad said that she "failed miserably" in a rape case after a jury convicted a man on three charges and acquitted him on three charges.
Kane said that she asked Freed last week to request that the RSLC stop running the ads, which have been airing on four Philadelphia television stations since Sept. 20.
"He agreed that they were a lie and said there was nothing he could do about it," Kane said.
Tim Kelly, Freed's campaign manager, disputed Kane's claim that Freed called the ad a lie when the two met last week.
"He did have the decency to approach Kathleen Kane and respectfully relay to her that the ad, the research of the ad and the message of the ad was in no way connected to or controlled by his campaign," Kelly said.
Contact Chris Brennan at email@example.com or 215-854-5973. Follow him on Twitter @ChrisBrennanDN. Read his blog at PhillyClout.com.