Is CVE-2026-27303 actively exploited?

CVE-2026-27303 has no public evidence of in-the-wild exploitation as of 2026-04-15.

What is the CVSS score for CVE-2026-27303?

CVE-2026-27303 has a CVSS score of 9.6 (CRITICAL severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.

How do I patch CVE-2026-27303?

Patch guidance is available from Adobe security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-27303.

Which products are affected by CVE-2026-27303?

1 product: Adobe Undergoing Analysis.

Fix CVE-2026-27303 - CRITICAL Adobe Undergoing Analysis

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 does not require user interaction. Scope is changed.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: required
Scope: changed
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-502 · Insecure Deserialization

Metadata

Primary Vendor: ADOBE
Published: 4/14/2026
Last Modified: 4/15/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2026-27303

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary