CVE-2021-40719: Adobe Connect

Critical severity, CVSS 9.8. EPSS: 3.5% chance of exploitation in the next 30 days.

Adobe Connect version 11.2.3 (and earlier) is affected by a Deserialization of Untrusted Data vulnerability to achieve arbitrary method invocation when AMF messages are deserialized on an Adobe Connect server. An attacker can leverage this to execute remote code execution on the server.

Affected products

• Adobe Connect: up to and including 11.2.3

Published 2021-10-21. Last modified 2026-06-17.