How severe is CVE-2020-8195?

CVE-2020-8195 has a CVSS score of 6.5/10, rated MEDIUM. Review your exposure and patch according to your risk tolerance.

Which packages are affected by CVE-2020-8195?

Affected package information for CVE-2020-8195 is not yet fully mapped. Check the official advisory links for details.

How do I fix CVE-2020-8195?

No fixed version has been published for CVE-2020-8195 yet. Monitor the advisory for updates, apply mitigations recommended by the vendor, and use O3 Security to track when a fix becomes available in your stack.

Is CVE-2020-8195 actively exploited in the wild?

Yes. There are 2 known exploit references for CVE-2020-8195, including 2 in-the-wild exploitations observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2020-8195?

CVE-2020-8195 has an EPSS (Exploit Prediction Scoring System) score of 71.7%, placing it in the 99th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. A score above 50% indicates significantly elevated exploitation risk — immediate patching is strongly recommended.

Is CVE-2020-8195 in the CISA Known Exploited Vulnerabilities catalog?

Yes. CVE-2020-8195 (Citrix ADC, Gateway, and SD-WAN WANOP Appliance Information Disclosure Vulnerability) was added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2021-11-03. CISA required all US federal civilian agencies to remediate this vulnerability by 2022-05-03. The required action was: Apply updates per vendor instructions. Being listed in the KEV catalog is the strongest possible confirmation of active exploitation — treat this as a critical priority.

What type of vulnerability is CVE-2020-8195?

CVE-2020-8195 is classified as Improper Input Validation (CWE-20), Path Traversal (CWE-22). These weakness types describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation. This is a high-impact weakness class that often enables remote code execution or data exposure.

Which products and versions are affected by CVE-2020-8195?

CVE-2020-8195 affects citrix application delivery controller firmware; citrix gateway firmware; citrix gateway plug-in for linux; citrix netscaler gateway firmware, and 1 more product(s). Check the affected-products list on this page against your deployed version to confirm exposure.

When was CVE-2020-8195 published, and has it been updated?

CVE-2020-8195 was published on July 10, 2020 and was last updated on October 30, 2025. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CISA KEV·Added 2021-11-03 — agencies required to remediate by 2022-05-03

CVE-2020-8195

MEDIUM

Improper input validation 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,…

Published

Jul 10, 2020

Updated

Oct 30, 2025

Affected

0 pkgs

Patched

None yet

Exploits

2 known

EPSS Exploitation Probability

via FIRST.org ↗

71.7%probability of exploitation in next 30 days

Very High Risk99th percentile0.00%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Description

Improper input validation 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.

Affected Products

5 products · 14 configurations

application delivery controller firmwarecitrix

≥ 13.0 && < 13.0-58.30

range

gateway firmwarecitrix

≥ 13.0 && < 13.0-58.30

range

Application

gateway plug-in for linuxcitrix

< 1.0.0.137

range

netscaler gateway firmwarecitrix

≥ 12.1 && < 12.1-57.18

range

sd-wan wanopcitrix

≥ 11.1 && < 11.1.1a

range

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

Improper input validation in Citrix ADC and Citrix Gateway versions befo…

packetstormsecurity.comNVDSep 2021

Improper input validation in Citrix ADC and Citrix Gateway versions befo…

cisa.govCISAJul 2021

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is CVE-2020-8195 in your stack?

O3 detects CVE-2020-8195 across dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

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