CVE-2026-34659: Adobe Connect Desktop Application

Critical severity, CVSS 9.6. EPSS: 1.9% chance of exploitation in the next 30 days.

Adobe Connect versions 2025.9.15, 2025.8.157 and earlier are affected by a Deserialization of Untrusted Data vulnerability that could result in arbitrary code execution in the context of the current user. An attacker could exploit this vulnerability to execute arbitrary code. Exploitation of this issue requires user interaction in that a victim must visit a maliciously crafted URL or interact with a compromised web page. Scope is changed.

Affected products

• Adobe Connect Desktop Application: up to and including 2025.8.157; version 2025.9.15 only

Published 2026-05-12. Last modified 2026-08-28.