Acronis True Image 2021 includes an OpenSSL component that specifies an OPENSSLDIR variable as a subdirectory within C:\jenkins_agent\. Acronis True Image contains a privileged service that uses this OpenSSL component. Because unprivileged Windows users can create subdirectories off of the system root, a user can create the appropriate path to a specially-crafted openssl.cnf file to achieve arbitrary code execution with SYSTEM privileges.
Acronis True Image 2021 fails to properly set ACLs of the C:\ProgramData\Acronis directory. Because some privileged processes are executed from the C:\ProgramData\Acronis, an unprivileged user can achieve arbitrary code execution with SYSTEM privileges by placing a DLL in one of several paths within C:\ProgramData\Acronis.
Acronis True Image up to and including version 2017 Build 8053 performs software updates using HTTP. Downloaded updates are only verified using a server-provided MD5 hash.
Acronis True Image Group Server 1.5.19.191 and earlier, included in Acronis True Image Enterprise Server 9.5.0.8072 and the other True Image packages, allows remote attackers to cause a denial of service (crash) via a packet with an invalid length field, which causes an out-of-bounds read.
Acronis True Image Windows Agent 1.0.0.54 and earlier, included in Acronis True Image Enterprise Server 9.5.0.8072 and the other True Image packages, allows remote attackers to cause a denial of service (crash) via a malformed packet to port 9876, which triggers a NULL pointer dereference.