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Citrix Receiver App for Windows Remote Code Execution Vulnerability (CTX251986)

critical Nessus Plugin ID 299409

Synopsis

The remote device is affected by a remote code execution vulnerability.

Description

The version of Citrix Receiver installed on the remote host is affected by a remote code execution vulnerability due to incorrect access control. An unauthenticated, remote attacker can exploit this to bypass authentication and execute arbitrary commands on the remote host.

Solution

Upgrade Citrix Receiver for Windows to LTSR 4.9 CU6 version 4.9.6001

See Also

https://support.citrix.com/article/CTX251986

Plugin Details

Severity: Critical

ID: 299409

File Name: citrix_receiver_CTX251986.nasl

Version: 1.1

Type: local

Agent: windows

Family: Windows

Published: 2/18/2026

Updated: 2/18/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.2

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

CVSS Score Source: CVE-2019-11634

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.1

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

Temporal Vector: CVSS:3.0/E:F/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:citrix:receiver

Required KB Items: installed_sw/Citrix Receiver

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/10/2019

Vulnerability Publication Date: 5/13/2019

CISA Known Exploited Vulnerability Due Dates: 5/3/2022

Reference Information

CVE: CVE-2019-11634

CWE: 284