# CVE-2026-27303: Adobe Connect versions 2025.3, 12.10 and earlier are affected by a Deserialization of Untrusted Data vulnerability…

Source: https://junglewise.ai/threats/cve-2026-27303-adobe-connect-versions-2025-3-12-10-and-earlier-are-affected-by-a  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-04-14  
License: CC BY 4.0 with a link back

CVE-2026-27303 · Severity: critical · CVSS 9.6 · Published 2026-04-14

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.

Technologies: [Adobe Connect](https://junglewise.ai/threats/technologies/adobe-connect), [Adobe Connect Desktop Application](https://junglewise.ai/threats/technologies/connect-desktop-application), [Apple macOS](https://junglewise.ai/threats/technologies/macos), [Microsoft Windows](https://junglewise.ai/threats/technologies/windows). Vendors: [Adobe](https://junglewise.ai/threats/vendors/adobe), [Apple](https://junglewise.ai/threats/vendors/apple), [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2026-27303 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-27303 being exploited in the wild.

**How severe is CVE-2026-27303?** Critical severity, with a CVSS score of 9.6, published 14 April 2026.

**Which products and versions are affected?** Adobe Connect, Adobe Connect Desktop Application, Apple macOS, Microsoft Windows. The advisory does not name versions.

**Is there a fix for CVE-2026-27303?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**Am I affected by CVE-2026-27303?** Check whether you run Adobe Connect, Adobe Connect Desktop Application, Apple macOS or one of the others listed. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Adobe Connect
- Adobe Connect Desktop Application
- Apple macOS
- Microsoft Windows

## Related threats

- [Adobe Connect stored cross-site scripting in form fields](https://junglewise.ai/threats/cve-2026-122102-adobe-connect-is-affected-by-a-stored-cross-site-scripting-xss)
- [Adobe Connect incorrect authorization privilege escalation](https://junglewise.ai/threats/cve-2026-121913-adobe-connect-is-affected-by-an-incorrect-authorization)
- [Adobe Connect cross-site scripting in form fields](https://junglewise.ai/threats/cve-2026-121912-adobe-connect-is-affected-by-a-cross-site-scripting-xss)
- [Adobe Connect multiple critical vulnerabilities](https://junglewise.ai/threats/cve-2026-121910-adobe-connect-is-affected-by-a-cross-site-scripting-xss)
- [Adobe Connect SQL injection](https://junglewise.ai/threats/cve-2026-121908-adobe-connect-is-affected-by-an-improper-neutralization-of)