Gary Lineker was found to have broken impartiality rules by the corporation.
In February, the Match of the Day host posted a story about then-Foreign Secretary LizTruss urging a boycott of the final.
He asked if her party would return their donations from Russians.
Lineker's post "did not meet the BBC's editorial standards on impartiality", according to the executive complaints unit.
The decision was not commented on by the former England player.
Although not required to uphold the same high standards of impartiality as the broadcaster's journalists, Lineker does have an additional responsibility because of his high profile.
The ruling said that they expect these individuals to take care when addressing public policy matters and avoid taking sides in political issues.
The board accepted that Lineker meant it to be a comment on the sport rather than politics, as he pointed out, and that he had pointed it out.
A statement of opinion on a politically controversial matter was framed in the form of a question by the man.
The post was meant to highlight a perceived inconsistency in the Conservative Party's approach at a time when relations between the UK and Russia were the subject of significant public debate.
As Russia began its invasion of Ukraine, Lineker's message came, and just before Uefa moved the final of the European footballing competition to Paris.
The decision was discussed with Lineker and the managers of the sport.
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