Goals from Vitinho and Timur Zhamaletdinov saw CSKA Moscow overturn a deficit to defeat Benfica on Tuesday.
CSKA Moscow stunningly ended their run of 10 matches without a Champions League victory by coming from behind to beat Benfica 2-1 in Lisbon.
Vitinho and Timur Zhamaletdinov scored in the space of eight second-half minutes to snatch a drought-breaking three points for the Russian outfit.
Portuguese champions Benfica had entered the match as heavy favourites against a team which had lost 11 of their past 13 away fixtures in Europe's premier club competition.
New signing Haris Seferovic put the hosts into an expected lead shortly after half-time, but Viktor Goncharenko's side launched an unlikely comeback in the final third of the contest.