CVE-2026-34659

Name: CVE-2026-34659
Creator: NVD / NIST
Published: 2026-05-12T19:16:30.8+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.6/10EPSS 0.64%

Last modified Jun 17, 2026

CVE-2026-34659 is a critical-severity vulnerability rated 9.6/10 on the CVSS scale. Adobe Connect versions 2025.9.15, 2025.8.157 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. An attacker could exploit this vulnerability to execute arbitrary code. EPSS estimates a 0.64% chance of exploitation in the next 30 days.

Description

Adobe Connect versions 2025.9.15, 2025.8.157 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. An attacker could exploit this vulnerability to execute arbitrary code. 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.

Metrics

CVSS 3.1

9.6/10

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

EPSS Probability

0.64%

45.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-502

Affected Software

Vendor	Product	Versions
Adobe	Connect Desktop Application	<= 2025.8.157
Adobe	Connect Desktop Application	2025.9.15

References

https://helpx.adobe.com/security/products/connect/apsb26-50.htmlVendor Advisory

Timeline

Published: May 12, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-34659?

How severe is CVE-2026-34659?

CVE-2026-34659 has a CVSS score of 9.6/10 (CRITICAL severity). The EPSS model estimates a 0.64% probability of exploitation in the next 30 days.

How do I fix CVE-2026-34659?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-34659?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST