CVE-2019-11634: Citrix Workspace Application and Receiver for Windows Remote Code Execution Vulnerability

Critical severity · published May 22, 2019

CVE-2019-11634

Citrix Workspace Application and Receiver for Windows Remote Code Execution Vulnerability

RansomwareIn wildKEV

9.8

CVSS

8.1%

EPSS

Yes

On KEV

Description

Citrix Workspace App before 1904 for Windows has Incorrect Access Control.

CVSS vector

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

Attack vector

Network

Complexity

Low

Privileges

None

User interaction

None

Confidentiality

High

Integrity

High

Availability

High

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)8.1% · higher than 95% of CVEs

Exploited in the wildYes

CISA KEVListed Nov 3, 2021

Federal remediation dueMay 3, 2022

Ransomware campaign useKnown

Affected products

Which versions

Receiver · Citrix

4.9 · source: NVD

Workspace · Citrix

before 1904 · source: NVD

Workspace Application and Receiver for Windows · Citrix

All versions, or not specified · source: KEV

Affected product

Receiver

Citrix

All Receiver CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2019-11634

CVE.org

https://www.cve.org/CVERecord?id=CVE-2019-11634

CISA KEV catalogue

https://www.cisa.gov/known-exploited-vulnerabilities-catalog

x_refsource_MISC

https://support.citrix.com/v1/search?searchQuery=%22%22&lang=en&sort=cr_date_desc&prod=&pver=&ct=Security+Bulletin

x_refsource_CONFIRM

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