Russia is ready to supply weapons and military hardware to the Collectvie Security Organization (CSTO) member nations bordering Afghanistan at special low prices, Russian Vice-Premier Yuri Borisov told reporters at the Army-2021 Forum on August 23, according to TASS

“We will do whatever is necessary to strengthen our southern borders, including what you said. Perhaps,” Yuri Borisov said, answering the related question.  

Russia has called for joint action with its allies in Central Asia to prepare for potential security threats from Afghanistan following the U.S. exit of troops and the Taliban's lightning takeover.

It is to be noted that of the Central Asian member nations of the Russia-led security bloc, only Tajikistan borders Afghanistan.

The Collective Security Treaty Organization currently has six member nations, namely Russia, Armenia, Belarus, Kazakhstan, Kyrgyzstan, and Tajikistan. The Collective Security Treaty was signed in Tashkent in 1992.