---
id: CVE-2026-34659
title: >-
  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
summary: >-
  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 v…
severity: critical
cvss: 9.6
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H'
cwe:
  - CWE-502
vendor: adobe
product: connect_desktop_application
affected:
  - connect_desktop_application <= 2025.8.157
  - connect_desktop_application = 2025.9.15
published: '2026-05-12'
updated: '2026-08-27'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-34659'
references:
  - url: 'https://helpx.adobe.com/security/products/connect/apsb26-50.html'
    label: psirt@adobe.com
tags:
  - nvd
epss: 0.01872
epssPercentile: 0.78452
ingestedAt: '2026-08-27T18:06:12.646Z'
---

## Overview

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.

## Affected

- `connect_desktop_application <= 2025.8.157`
- `connect_desktop_application = 2025.9.15`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.