Russia's national Olympic committee were suspended in December over systemic drug-cheating that reached its apex at the Sochi 2014 Olympics.
The IOC allowed 168 Russians deemed drug-free to compete in South Korea under a neutral flag, but despite extensive vetting, two of them failed drugs tests.
The IOC will decide in the next 36 hours whether the country can be readmitted. Officials have pointed out that a "partial" lifting of the ban is one option for the IOC.
The IOC was giving nothing away on Saturday as its executive board met behind closed doors to pour over the observations of a special panel scrutinising the Russians.
"The executive board will hear and decide today on the basis of what they've heard from the panel what the next steps will be," said IOC spokesman Mark Adams.
The Russians are hoping that the ban could be lifted in time to parade their national flag for Sunday evening's closing ceremony at Pyeongchang Olympic Stadium.
It was dope-scarred Russia's second doping case in Pyeongchang, after curler Alexander Krushelnitsky was stripped of his mixed doubles bronze medal for taking the banned substance meldonium.
Addressing the latest case, Adams said: "We are always extremely disappointed when there's a doping case, but so far there have been very few cases.
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