<p>The vulnerabilities described below were identified during an external security audit by <a href="https://www.radicallyopensecurity.com/">Radically Open Security</a> and disclosed responsibly to our team. We are not aware of these attacks being used against Tails users until now.</p>
<p>These vulnerabilities can only be exploited by a powerful attacker who has already exploited another vulnerability to take control of an application in Tails.</p>
If you cannot do an automatic upgrade or if Tails fails to start after an automatic upgrade, please try to do a [[manual upgrade|doc/upgrade/#manual]].
