What is the CVSS score of EUVD-2025-20691?

EUVD-2025-20691 has a CVSS 3.1 base score of 9.6 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H. EPSS exploitation probability: 14.7%.

Which versions of Adobe are affected by EUVD-2025-20691?

CVE-2025-27203 presents critical security risk, a insecure deserialization vulnerability rated CVSS 9.6.

How to fix or mitigate EUVD-2025-20691?

Within 24 hours: Identify all affected systems and apply vendor patches immediately. Restrict deserialization to trusted data sources and implement integrity checks.

Adobe EUVD-2025-20691

| CVE-2025-27203 CRITICAL

Deserialization of Untrusted Data (CWE-502)

2025-07-08 psirt@adobe.com

Deserialization RCE Adobe

9.6

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.6 CRITICAL

AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

EUVD ID Assigned

Mar 16, 2026 - 04:21 euvd

EUVD-2025-20691

Analysis Generated

Mar 16, 2026 - 04:21 vuln.today

CVE Published

Jul 08, 2025 - 22:15 nvd

CRITICAL 9.6

DescriptionCVE.org

Adobe Connect versions 24.0 and earlier are affected by a Deserialization of Untrusted Data vulnerability that could lead to arbitrary code execution by an attacker. Exploitation of this issue does require user interaction and scope is changed.