---
id: "CVE-2020-8196"
kind: "vulnerability"
aliases: ["CVE-2020-8196"]
title: "Citrix Application Delivery Controller (ADC), Gateway, and SD-WAN WANOP Appliance: Citrix ADC, Gateway, and SD-WAN WANOP Appliance Information Disclosure Vulnerability"
severity: "medium"
cvss: 4.3
epss: 0.26333
exploited: true
status: "open"
category: "infrastructure"
products: [{"name": "Citrix Application Delivery Controller (ADC), Gateway, and SD-WAN WANOP Appliance", "fixed": [], "affected": "", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["citrix", "exploited", "infrastructure", "netscaler", "sd-wan", "self-hosted"]
not_affected_if: ["unknown"]
published_at: "2020-07-10T16:15:12+00:00"
first_seen_at: "2026-10-23T19:11:53+00:00"
updated_at: "2026-10-23T21:57:35+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2020-8196", "first_seen_at": "2026-10-23T19:11:53+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2020-8196", "first_seen_at": "2026-10-23T19:13:44+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-8196", "first_seen_at": "2026-10-23T21:57:35+00:00"}]
---

# Citrix Application Delivery Controller (ADC), Gateway, and SD-WAN WANOP Appliance: Citrix ADC, Gateway, and SD-WAN WANOP Appliance Information Disclosure Vulnerability

Citrix ADC, Citrix Gateway and SD-WAN WANOP appliances leak information through an unspecified flaw. Public reports tie it to unauthenticated reads of sensitive data from the appliance, which can aid further attacks.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:Citrix Application Delivery Controller (ADC), Gateway, and SD-WAN WANOP Appliance affected ? fixed ?

## Fix

Apply the Citrix update for affected ADC, Gateway and SD-WAN WANOP firmware per vendor instructions (CISA KEV required action); exact fixed versions are unknown from these sources.

## Timeline

- 2026-10-23T19:11:53+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2020-8196
- 2026-10-23T19:13:44+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2020-8196
- 2026-10-23T21:57:35+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2020-8196

## From the sources

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 resulting in limited information disclosure to low privileged users.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_