CVE-2020-8193 — Citrix ADC, Gateway, and SD-WAN WANOP Appliance Authorization Bypass Vulnerability
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.
Vulnerability details
- CVE ID
- CVE-2020-8193
- Vulnerability
- Citrix ADC, Gateway, and SD-WAN WANOP Appliance Authorization Bypass Vulnerability
- Vendor
- Citrix
- Affected products
- Citrix: Application Delivery Controller (ADC), Gateway, and SD-WAN WANOP Appliance
- Severity
- HIGH
- Exploitation status
- Actively exploited in the wild (CISA KEV)
- Published
- 2021-11-03
Remediation guidance
CVE-2020-8193 is in CISA's Known Exploited Vulnerabilities (KEV) catalog — U.S. federal civilian agencies are required to remediate it under Binding Operational Directive 22-01. Treat it as a priority for every environment.
Apply the vendor's official security update for Citrix the affected product as soon as possible. Where a patch is unavailable, apply vendor mitigations or isolate/segment exposed systems.
Hunt for indicators of compromise tied to this vulnerability and confirm logging/EDR coverage on affected assets.
Authoritative references
Remediate CVE-2020-8193 — and stay ahead of the next one
CVE-2020-8193 is listed in the CISA KEV catalog as actively exploited — treat remediation as urgent. Scan your domain free to see whether CVE-2020-8193 and other Citrix issues affect you and get a prioritized remediation report (full report from ₹999) — or stream the full feed of 1,600+ actively-exploited CVEs straight into your SOC.
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