CVE-2026-27303: Adobe Connect versions 2025.3, 12.10 and earlier are affected by a Deserialization of Untrusted Data vulnerability that could result in arbitrary code…

PriorityP355critical9.6CVSS 3.1

AVNACLPRNUIRSCCHIHAH

EPSS

0.61%

45.4th percentile

Adobe Connect versions 2025.3, 12.10 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. 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

4 ranges

Vendor	Product	Version range	Fixed in
adobe	adobe_connect	<= 12.10	—
adobe	connect	< 12.11	12.11
adobe	connect_desktop_application	< 2025.9.15	2025.9.15
adobe	connect_desktop_application	<= 2025.3	—

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