CVE-2026-27303: Adobe Connect | Deserialization of Untrusted Data (CWE-502)
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 Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-27303?
CVE-2026-27303 is classified as a high severity vulnerability due to its potential for arbitrary code execution.
How do I fix CVE-2026-27303?
To mitigate CVE-2026-27303, users should update Adobe Connect to version 2025.4 or later as recommended by Adobe.
Which versions of Adobe Connect are affected by CVE-2026-27303?
CVE-2026-27303 affects Adobe Connect versions 2025.3, and 12.10 and earlier.
What type of vulnerability is CVE-2026-27303?
CVE-2026-27303 is a Deserialization of Untrusted Data vulnerability (CWE-502).
What are the potential impacts of CVE-2026-27303?
Exploitation of CVE-2026-27303 could lead to arbitrary code execution in the context of the current user.