Credit: Steven Lawton/FilmMagic

Brandi Glanville could be headed for the Big House.

The ex-wife to Eddie Cibrian was officially charged for an October DUI arrest, L.A. County's District Attorney tells TMZ.

The model -- her husband left her after he was caught cheating with LeAnn Rimes in 2009 -- was pulled over on Sunset Boulevard Oct. 29 and failed a field sobriety test. She has now been charged with two misdemeanors: driving under the influence of alcohol or drugs and driving with a blood alcohol level above .08%.

If she's convicted, she faces up to six months in jail and a $1,000 fine.

"I messed up. I take full responsibility for my actions," she tweeted in October after the incident. "I regret my bad choice, and am thankful to God that no one got hurt. I'm sorry.

Glanville has two sons with her ex: Mason, 7, and Jake, 3.