Adobe Connect 12.10, 2025.3 Deser: Untrusted Data Arbitrary Code Exec
CVE-2026-27303 Published on April 14, 2026
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.
Vulnerability Analysis
CVE-2026-27303 can be exploited with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be critical as this vulnerability has a high impact to the confidentiality, integrity and availability of this component.
Weakness Type
What is a Marshaling, Unmarshaling Vulnerability?
The application deserializes untrusted data without sufficiently verifying that the resulting data will be valid.
CVE-2026-27303 has been classified to as a Marshaling, Unmarshaling vulnerability or weakness.
Products Associated with CVE-2026-27303
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Affected Versions
Adobe Connect:- Before and including 12.10 is affected.