Overview
Citrix ADC, Citrix Gateway, and multiple Citrix SD-WAN WANOP appliance models contain an authorization bypass vulnerability that may allow unauthenticated access to certain URL endpoints. The attacker must have access to the NetScaler IP (NSIP) in order to perform exploitation.
https://nvd.nist.gov/vuln/detail/CVE-2020-8193
Key Details
| Property | Value |
|---|---|
| CVE ID | CVE-2020-8193 |
| Vendor / Product | Citrix — Application Delivery Controller (ADC), Gateway, and SD-WAN WANOP Appliance |
| NVD Published | 2020-07-10 |
| NVD Last Modified | 2025-10-30 |
| CVSS 3.1 Score | 6.5 |
| CVSS 3.1 Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
| Severity | MEDIUM |
| CWE | CWE-284 |
| CISA KEV Added | 2021-11-03 |
| CISA KEV Deadline | 2022-05-03 |
| Known Ransomware Use | No |
CVSS 3.1 Breakdown
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None
Required Action
CISA BOD 22-01 Deadline: 2022-05-03.
Apply updates per vendor instructions.
Timeline
| Date | Event |
|---|---|
| 2021-11-03 | Added to CISA Known Exploited Vulnerabilities catalog |
| 2022-05-03 | CISA BOD 22-01 remediation deadline |
References
| Resource | Type |
|---|---|
| NVD — CVE-2020-8193 | Vulnerability Database |
| CISA KEV Catalog Entry | US Government |