It was partly Vörös's fault that Governor Miklós Horthy's attempt to surrender failed on 15 October 1944. Although Horthy made a proclamation requesting an armistice, Vörös ordered the continuation of military operations. A day later, Hungarian Fascists took power in Budapest, appointed a prime minister friendly to Germany, and relieved Vörös, who had concluded that Hungary must leave the war. Vörös fled, disguised as a Franciscan monk, and surrendered to the Soviets on 1 November. He was taken to Moscow, and he served as a member of the Hungarian delegation that negotiated an armistice with the Soviet Union. On his return from Moscow, Vörös was appointed minister of defense in the new interim government (December 1944–November 1945) and was a member of the Hungarian government delegation that signed the peace treaty with the Soviet Union on 20 January 1945. Vörös resigned his position as chief of staff on 2 March 1946.
On 25 March 1949, Vörös was arrested by the Hungarian government on charges of spying for the United States. Tried and convicted, he was sentenced to life in prison, but he was freed during the 1956 Hungarian Revolution. He died in Balatonfüred, Hungary, on 23 July 1968. In 1992, the Hungarian Supreme Court annulled the charges against Vörös and rehabilitated him.
Eby, Cecil D. Hungary at War: Civilians and Soldiers in World War II. University Park: University of Pennsylvania Press, 1998.; Fenyo, Mario D. Hitler, Horthy, and Hungary: German-Hungarian Relations, 1941–1944. New Haven, CT: Yale University Press, 1972.; Szakály, Sándor. "A Magyar Királyi Honvéd Vezérkar fõnökei, 1919 augusztus 12–1945 május 9." (Chiefs of staff of the Royal Hungarian Army, 12 August 1919–9 May 1945). Új Honvédségi Szemle 56 (January 2002): 96–115.