CVE-2019-11634
Act now ● On CISA KEV — actively exploited used in ransomware
Actively exploited — on the CISA KEV list.
CVSS base
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
8.0%
94.5th percentile
CISA KEV
Listed
Added 2021-11-03 · patch by 2022-05-03
Weakness / dates
CWE-284
Published 2019-05-22 · modified 2026-08-12
CVSS breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
| Attack Vector | N | Network |
| Attack Complexity | L | Low |
| Privileges Required | N | None |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | H | High |
| Integrity | H | High |
| Availability | H | High |
Timeline
- 2019-05-22 — Published (NVD)
- 2021-11-03 — Added to CISA KEV (actively exploited)
- 2022-05-03 — CISA patch-by deadline
- 2026-08-12 — Last modified (NVD)
Description
Citrix Workspace App before 1904 for Windows has Incorrect Access Control.
Affected
References
- https://support.citrix.com/article/CTX251986
- https://support.citrix.com/v1/search?searchQuery=%22%22&lang=en&sort=cr_date_desc&prod=&pver=&ct=Security+Bulletin
- https://support.citrix.com/article/CTX251986
- https://support.citrix.com/v1/search?searchQuery=%22%22&lang=en&sort=cr_date_desc&prod=&pver=&ct=Security+Bulletin
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-11634