CVE-2026-27303

CRITICAL

Adobe Connect | Deserialization of Untrusted Data (CWE-502)

Title source: cna
STIX 2.1

Description

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.

Scores

CVSS v3 9.6
EPSS 0.0374
EPSS Percentile 88.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-502
Status published
Products (4)
Adobe/Adobe Connect < 12.10
adobe/connect < 12.11
adobe/connect_desktop_application < 2025.3
adobe/connect_desktop_application < 2025.9.15
Published Apr 14, 2026
Tracked Since Apr 14, 2026