While the 3-minute video has vanished from the Internet since it was leaked Wednesday, those who saw it claim that Cibrian and Rimes could be heard making fun of Glanville and arguing over a tabloid report that claimed Cibrian and Glanville had a $50 million divorce.
"Don't let it bother you so much," the Sunset Beach actor reportedly tells Rimes at one point in the clip.
When E! News asked VH1 about the video, the network said the clip was never meant to be released.
On the day the alleged video came out, Glanville took to Twitter to post a cryptic message about the couple.
"My life sounds like a reality show! :) what to do...Kill the GF or the ex BF!!! Soooooo many choices," she wrote on May 28.
It is not clear if Glanville's tweet was in fact related to the leaked video, given that the Real Housewives of Beverly Hills star constantly takes jabs at the couple on social media. Glanville revealed in her second book Drinking and Dating, that she joined Twitter to obsess over "[her] husband, his future wife, and [their] children."