Exploited CVEs / Citrix / CVE-2020-8195

CVE-2020-8195

Citrix ADC, Gateway, and SD-WAN WANOP Appliance Information Disclosure Vulnerability. Exploitation in the wild is confirmed by CISA, not predicted. Federal agencies were required to remediate by 2022-05-03 (that deadline has passed); treat that date as the outer bound for your own environment. The fix is in the vendor advisory: Citrix Security Bulletins, linked below.

MediumCISA KEV

Actively exploited Citrix Application Delivery Controller (ADC), Gateway, and SD-WAN WANOP Appliance vulnerability, Medium severity, CVSS 6.5. Added to the CISA KEV catalog 2021-11-03.

Senserva AI read on CVE-2020-8195CISA required actionOfficial fix for CVE-2020-8195Admin questions

Risk summary

CVSS base
6.5
EPSS exploit probability
33%
Severity
Medium
Added to KEV
2021-11-03
CISA due date
2022-05-03 (past due)
Patch now
Exploited in the wild: confirmed by the CISA KEV catalog, not predicted.
The fix ships from the vendor: Citrix Security Bulletins.
Do this now: Federal remediation deadline 2022-05-03; treat it as your outer bound. Patch now and verify deployment on every exposed device.

Updated July 26, 2026. Data refreshed on every build from MSRC, CISA KEV, and FIRST EPSS.

Senserva AI Opinion for CVE-2020-8195

Attackers exploited this Citrix ADC, Gateway, and SD-WAN WANOP information disclosure flaw in the wild, typically chained behind the companion authorization bypass disclosed alongside it, to pull sensitive data off the appliance. Appliances that broker remote access hold session and configuration data worth stealing. Patch state for one of these related bugs usually predicts the others, so treat them as a set.

Do this: Confirm your Citrix appliances run fixed builds and audit for all related CVEs from the same advisory.

AI-generated from public data, 2026-07-07. Verify against the vendor advisory before acting.

Senserva AI Opinion and rich prompt for CVE-2020-8195

Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.

Full tracking and change history for CVE-2020-8195

Published
2021-11-03
Last revised
2021-11-03
Changes tracked
1

Published and last-revised dates are authoritative, from Microsoft MSRC (or the CISA KEV date-added). Senserva additionally records day-to-day changes from 2026-07-07, refreshed several times a day; the change count reflects that forward-only tracking.

CISA required action

Federal (BOD 22-01) remediation due date: 2022-05-03 (past due).

Apply updates per vendor instructions.

Official fix for CVE-2020-8195

The authoritative fix and affected-version list are published by the vendor. Find the Application Delivery Controller (ADC), Gateway, and SD-WAN WANOP Appliance advisory on Citrix Security Bulletins.

Common questions about CVE-2020-8195

Is CVE-2020-8195 actively exploited?

Yes. CVE-2020-8195 was added to the CISA Known Exploited Vulnerabilities (KEV) catalog on 2021-11-03, which means exploitation in the wild has been confirmed, not predicted. Its EPSS 30-day exploitation probability is 33%.

What is the CISA deadline and required action for CVE-2020-8195?

CISA set the federal (BOD 22-01) remediation due date at 2022-05-03, which has passed; treat any unremediated system as overdue. The verbatim required action: Apply updates per vendor instructions.

What fixes CVE-2020-8195?

The authoritative fix is in the vendor advisory: see Citrix Security Bulletins for the patched Application Delivery Controller (ADC), Gateway, and SD-WAN WANOP Appliance versions and any workarounds. KEV listing makes this a fix-first item: patch it ahead of higher-CVSS issues nobody is exploiting.

Can I ask my own AI about CVE-2020-8195?

Yes. This page includes a free, ready-to-paste AI prompt containing CVE-2020-8195's key facts: severity, CVSS, EPSS, the KEV date, the CISA due date, and the required action. Copy it into Claude, ChatGPT, or Copilot; the data is refreshed twice a day (5 AM and 3 PM US Central).

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Lexicon: the terms on this page
CVE
Common Vulnerabilities and Exposures. A unique ID for one publicly known vulnerability, such as CVE-2025-1234.
KB
Microsoft Knowledge Base article. The identifier for a specific Microsoft update.
KEV
CISA Known Exploited Vulnerabilities. CVEs confirmed exploited in the wild. Fix these first.
CVSS
Common Vulnerability Scoring System. A standardized Severity score from 0 to 10.
EPSS
Exploit Prediction Scoring System. The probability a CVE will be exploited in the next 30 days.
MSRC
Microsoft Security Response Center. Microsoft's Patch Tuesday advisories and KB-to-CVE mapping.
NVD
National Vulnerability Database (NIST). Authoritative CVE metadata and CVSS scores.
Ransomware
The vulnerability is linked to known ransomware activity.
Reference: Microsoft CVE and vulnerability management, the full CVE-to-patch lookup ranked by real-world risk, and the Microsoft patching guide, how Intune, Windows Autopatch, Defender, and Azure Update Manager fit together.
Data notice: this page, the feeds, and the API are provided as is, for informational purposes only, without warranty of any kind. Senserva, LLC does not guarantee the accuracy, completeness, or timeliness of third-party data (MSRC, NVD, CISA KEV, EPSS) and accepts no liability for actions taken based on it; verify against the authoritative vendor advisory before acting. Built daily with Senserva Trustworthy AI. All use of this data is subject to the Senserva EULA.