7-Zip is an open-source Windows utility that allows a user to manipulate archives for extremely high compression... multiple vendors including FireEye, Malwarebytes, and Comodo have integrated 7-Zip's libraries and components into their anti-virus products,
Two recently announced 7-Zip flaws can affect anti-virus products and security devices... Users should update their vulnerable versions to the latest 7-Zip version,16.00, ASAP.
https://www.grahamcluley.com/2016/05/anti-virus-products-security-devices-affected-7-zip-flaws/