Detections
Analytics
Adobe Connect <= 2025.9.15 Multiple Vulnerabilities (APSB26-50)
critical Nessus Plugin ID 314677
Synopsis
The remote web server contains an application that is affected by multiple vulnerabilities.Description
The version of Adobe Connect installed on the remote host is prior to 2026.3.125. It is, therefore, affected by multiple vulnerabilities as referenced in the apsb26-50 advisory.- 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. (CVE-2026-34659)
- Adobe Connect versions 2025.9.15, 2025.8.157 and earlier are affected by an Incorrect Authorization vulnerability that could result in arbitrary code execution in the context of the current user. An attacker could exploit this vulnerability to inject malicious scripts into a web page, potentially gaining elevated access or control over the victim's account or session. 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. (CVE-2026-34660)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Upgrade to Adobe Connect version 2026.3.125 or later.See Also
https://helpx.adobe.com/security/products/connect/apsb26-50.html
Plugin Details
Severity: Critical
ID: 314677
File Name: adobe_connect_apsb26-50.nasl
Version: 1.1
Type: Remote
Agent: windows, macosx, unix
Family: CGI abuses
Published: 5/14/2026
Updated: 5/14/2026
Supported Sensors: Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: High
Score: 7.3
CVSS v2
Risk Factor: Critical
Base Score: 10
Temporal Score: 7.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2026-34659
CVSS v3
Risk Factor: Critical
Base Score: 9.6
Temporal Score: 8.3
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/a:adobe:connect
Required KB Items: installed_sw/Adobe Connect
Exploit Ease: No known exploits are available
Patch Publication Date: 5/12/2026
Vulnerability Publication Date: 5/12/2026
Reference Information
CVE: CVE-2026-34659, CVE-2026-34660