Adobe Creative Cloud version 5.5 (and earlier) are affected by a privilege escalation vulnerability in the resources leveraged by the Setup.exe service. An unauthenticated attacker could leverage this vulnerability to remove files and escalate privileges under the context of SYSTEM . An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability on the product installer. User interaction is required before product installation to abuse this vulnerability.

References

• https://nvd.nist.gov/vuln/detail/CVE-2021-43019
• https://helpx.adobe.com/security/products/creative-cloud/apsb21-111.html
• https://www.zerodayinitiative.com/advisories/ZDI-21-1333/