CVE-2020-8193
MEDIUMCISA KEVEPSS 100th pctlDescription
Improper access control in Citrix ADC and Citrix Gateway versions before 13.0-58.30, 12.1-57.18, 12.0-63.21, 11.1-64.14 and 10.5-70.18 and Citrix SDWAN WAN-OP versions before 11.1.1a, 11.0.3d and 10.2.7 allows unauthenticated access to certain URL endpoints.
How to fix
TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Exploit Intelligence
Very high risk: more likely to be exploited than 100% of all known CVEs.
Citrix ADC, Gateway, and SD-WAN WANOP Appliance Authorization Bypass Vulnerability
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.
Apply updates per vendor instructions.
Remediation due: 2022-05-03
References
Related Vulnerabilities
Other CWE-284 (Improper Access Control) vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2023-27350 | Critical | 9.8 | 100% | KEV + Ransom | Fix |
| CVE-2019-1653 | High | 7.5 | 100% | KEV | - |
| CVE-2023-23752 | Medium | 5.3 | 100% | KEV | Fix |
| CVE-2023-38205 | High | 7.5 | 100% | KEV | - |
| CVE-2023-29298 | High | 7.5 | 100% | KEV | - |
| CVE-2024-27348 | Critical | 9.8 | 99% | KEV | Fix |
Common questions
How do I fix CVE-2020-8193?
Published advisories record a fix for 4 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.
Is CVE-2020-8193 being actively exploited?
Yes. CVE-2020-8193 is listed in the CISA Known Exploited Vulnerabilities catalog, which means exploitation has been observed in the wild. US federal agencies were required to remediate it by 2022-05-03. Treat it as a priority whatever its CVSS score says.
How severe is CVE-2020-8193?
CVE-2020-8193 has a CVSS v3 base score of 6.5, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
What does CVE-2020-8193 affect?
Published advisories record a fix for application delivery controller firmware (NVD), gateway firmware (NVD), netscaler gateway firmware (NVD), sd-wan wanop (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
Embed a live status badge for CVE-2020-8193
Markdown
[](https://tridentstack.com/cve/CVE-2020-8193)HTML
<a href="https://tridentstack.com/cve/CVE-2020-8193"><img src="https://tridentstack.com/cve/badge/CVE-2020-8193.svg" alt="CVE-2020-8193"></a>Find and fix vulnerabilities across your fleet
TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.
This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-10-30.