CVE-2026-34659: 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…

PriorityP355critical9.6CVSS 3.1

AVNACLPRNUIRSCCHIHAH

EPSS

0.64%

46.3th percentile

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

3 ranges

Vendor	Product	Version range	Fixed in
adobe	adobe_connect	<= 2025.8.157	—
adobe	connect_desktop_application	<= 2025.8.157	—
adobe	connect_desktop_application	—	—

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