Detections
Analytics

Citrix Secure Access < 26.6.1.20 Multiple Vulnerabilities (CTX696734)

high Nessus Plugin ID 331858

Synopsis

Citrix Secure Access installed on the remote Windows host is affected by multiple vulnerabilities.

Description

The version of Citrix Secure Access installed on the remote host is prior to 26.6.1.20. It is, therefore, affected by multiple vulnerabilities:

 - An improper privilege management vulnerability allows a low-privileged user to escalate privileges. (CVE-2026-53565)

 - An out-of-bounds read vulnerability allows a low-privileged user to read sensitive information. (CVE-2026-53566)

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 Citrix Secure Access Client for Windows version 26.6.1.20 or later.

See Also

http://www.nessus.org/u?f7807398

Plugin Details

Severity: High

ID: 331858

File Name: citrix_secure_access_CTX696734.nasl

Version: 1.1

Type: Local

Agent: windows

Family: Windows

Published: 8/4/2026

Updated: 8/4/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7

Percentile: 98.23

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2026-53565

CVSS v3

Risk Factor: High

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v4

Risk Factor: High

Base Score: 8.5

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

CPE: cpe:/a:citrix:secure_access

Required KB Items: installed_sw/Citrix Gateway Plug-in

Patch Publication Date: 7/14/2026

Vulnerability Publication Date: 7/14/2026

Reference Information

CVE: CVE-2026-53565, CVE-2026-53566

IAVA: 2026-A-0703