Threats / Citrix / CVE-2020-8196
CVE-2020-8196
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-06-22
Citrix Application Delivery Controller (ADC), Gateway, and S vulnerability
Citrix ADC, Gateway, and SD-WAN WANOP appliances contain an information disclosure vulnerability allowing unauthorized access to sensitive data.
Verdict
Today item — known-exploited.
An information disclosure flaw in Citrix network appliances enables attackers to extract confidential information. Active exploitation in the wild demonstrates practical risk to organizations running affected infrastructure.
01
Is it exploitable?
— the evidence, ranked above the scoreReported exploitation
8 independent public reports of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03).
Probability (EPSS)
EPSS 0.26333 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
Affected: Citrix, Application Delivery Controller (ADC), Gateway, and SD-WAN WANOP Appliance. Confirm exact fixed builds in the vendor advisory.
Weakness (CWE)
Mapped to CWE-284 Improper Access Control — weakness family: Authorization / access control.CWE assignment from the public NVD record; the weakness class drives how the flaw is exploited.
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
I identify and probe Citrix appliances exposed on the network for the information disclosure weakness.
Business
Reconnaissance of critical network infrastructure goes undetected, establishing attacker foothold.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I exploit the vulnerability to read sensitive configuration data, credentials, or internal communications from the appliance.
Business
Confidential business data, authentication tokens, and system secrets are compromised without triggering alerts.
3
Lateral reach — past segmentation narrative 3
Attacker
I leverage extracted credentials or configuration details to escalate access to downstream systems and services.
Business
Lateral movement through the network becomes possible, expanding the scope of the breach beyond the appliance.
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05