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Vulnerabilities

Vulnerability · CVE-2020-8193

Citrix ADC, Gateway, and SD-WAN WANOP Appliance Authorization Bypass Vulnerability

Published Jul 10, 2020 · catalog updated Jun 16, 2026 · Citrix Application Delivery Controller (ADC), Gateway, and SD-WAN WANOP Appliance

Patch now

CVE-2020-8193 is in the CISA known-exploited catalog, due May 3, 2022. Confirm Citrix Application Delivery Controller (ADC), Gateway, and SD-WAN WANOP Appliance against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
Severity
Medium6.5
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
88.41%
Remediation
Remediation guidance
Affected products
cpe citrix/application delivery controller firmware · cpe citrix/gateway firmware · cpe citrix/netscaler gateway firmware · cpe citrix/sd-wan wanop · vendor Citrix Application Delivery Controller (ADC), Gateway, and SD-WAN WANOP Appliance

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. Initial-access exploit intelligence.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe citrix/application delivery controller firmwareversion unspecified
  • cpe citrix/gateway firmwareversion unspecified
  • cpe citrix/netscaler gateway firmwareversion unspecified
  • cpe citrix/sd-wan wanopversion unspecified
  • vendor Citrix Application Delivery Controller (ADC), Gateway, and SD-WAN WANOP Applianceversion unspecified

How to fix CVE-2020-8193

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2020-8193 is in the CISA known-exploited catalog, due May 3, 2022. Confirm Citrix Application Delivery Controller (ADC), Gateway, and SD-WAN WANOP Appliance against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Affected version ranges are not on this record. Apply updates per vendor instructions.

What should an analyst verify?

CWE-284: Improper Access Control; CWE-287: Improper Authentication. EPSS 88.41%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jul 10, 2020 · Catalog

    Detected

    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.

  2. Nov 3, 2021 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. May 3, 2022 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Jun 16, 2026 · Catalog

    Updated

    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.

Sources

  • CISA KEVConfirmed exploitationCVE-2020-8193

    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.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2020-8193

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2020-8193

    30-day exploitation probability 88.4%

    first.org
  • NIST NVDVulnerability recordCVE-2020-8193

    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.

    nvd.nist.gov
  • Packet Storm SecurityCited referencehttp://packetstormsecurity.com/files/160047/Citrix-ADC-NetScaler-Local-File-Inclusion.html

    Packet Storm link already published on the finding.

    packetstormsecurity.com
  • VulnCheck KEVConfirmed exploitationCVE-2020-8193

    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.

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.