The 94-year-old actress has been hospitalized several times over the past year and was admitted on Wednesday to UCLA Medical Center on Wednesday. She had reported difficulty breathing.
"We're still in the hospital," Von Anhalt, 67, told OnTheRedCarpet.com. "She is in a poor condition. I don't know what to do. It's really bad. It's pneumonia and it's in both lungs. She's had it twice before but it was a milder thing. Now it's really tough, it's hard. She's still in the emergency room."
He said that Gabor was hooked up to a ventilator at one point but is now "breathing slowly" on her own. He also said his wife is battling multiple infections.
Gabor's spokesperson said Gabor "hasn't been responding well" to treatment.
Gabor had one of her legs amputated in January after doctors found an infection and antibiotics failed to heal it.
She began her series of hospital visits after she broke her hip on July 17 after she fell out of her bed while reaching to answer her telephone as she was watching "Jeopardy!."
She underwent a hip operation but has suffered several complications. During one of her hospital stays in August, she had a priest read her last rites. Gabor is partially paralyzed from a 2002 car accident and uses a wheelchair. She also reportedly had a stroke in 2005.Gabor is reported to have been born in Budapest on Feb. 6, 1917 as Sari Gabor. She married von Anhalt in 1986. Gabor was married to Hilton, the great-grandfather of socialite Paris Hilton, from 1942 to 1947.
Gabor followed her actress sister Eva to Hollywood, where she later starred in movies herself, starting in 1952 with the films "Lovely to Look At," "We're Not Married!" and "Moulin Rouge." She also played herself in a brief scene in the 1991 Leslie Nielsen cop movie "The Naked Gun 2-1/2: The Smell of Fear," in which she parodied an incident from about a year earlier in which she was convicted of slapping a police officer during a traffic dispute. She also had a cameo in the film "A Very Brady Sequel" in 1996.