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PatchSiren cyber security CVE debrief

CVE-2020-8195 Citrix CVE debrief

CVE-2020-8195 is a Citrix information disclosure vulnerability affecting Application Delivery Controller (ADC), Gateway, and SD-WAN WANOP Appliance deployments. CISA added it to the Known Exploited Vulnerabilities catalog, which means defenders should treat it as a real-world risk and prioritize remediation using vendor guidance.

Vendor
Citrix
Product
Application Delivery Controller (ADC), Gateway, and SD-WAN WANOP Appliance
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2021-11-03
Original CVE updated
2021-11-03
Advisory published
2021-11-03
Advisory updated
2021-11-03

Who should care

Administrators and security teams responsible for Citrix ADC, Citrix Gateway, and SD-WAN WANOP appliances, especially environments where these systems are internet-facing or support remote access.

Technical summary

The supplied corpus identifies the issue as an information disclosure vulnerability in Citrix ADC, Gateway, and SD-WAN WANOP Appliance products. No additional technical details, affected version ranges, or root-cause information are provided in the supplied sources. CISA’s KEV record classifies it as known exploited and directs organizations to apply updates per vendor instructions.

Defensive priority

High. The vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, which is a strong indicator that exposed systems should be prioritized for patching and validation ahead of routine maintenance.

Recommended defensive actions

  • Identify all Citrix ADC, Gateway, and SD-WAN WANOP Appliance instances in your environment.
  • Apply the vendor-recommended updates or mitigations referenced by CISA as soon as possible.
  • Prioritize internet-facing and remote-access deployments for immediate review.
  • Confirm remediation after patching and document the affected asset inventory.
  • Reduce unnecessary exposure of management and gateway services where feasible.

Evidence notes

This debrief is based only on the supplied CISA KEV record and the official CVE/NVD links provided in the corpus. The corpus confirms the vulnerability type, affected Citrix product families, and KEV status, but does not include version ranges, exploit details, or vendor advisory text. Timing context uses the supplied CVE and KEV dates: published/modified 2021-11-03, KEV dateAdded 2021-11-03, and dueDate 2022-05-03.

Sources and references

Verified primary and authoritative sources

  • CVE-2020-8195 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2020-8195

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2020-8195 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2020-8195

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

  • CISA Known Exploited Vulnerabilities catalog

    Publisher, destination, and source semantics verified

    URL: https://www.cisa.gov/known-exploited-vulnerabilities-catalog

    Cybersecurity and Infrastructure Security Agency - Official CISA catalog of vulnerabilities known to be exploited in the wild.

Supplemental references

  • Source item URL

    Unverified legacy reference

    URL: https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json

    cisa_kev

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.