# Netscaler Gateway Firmware vulnerabilities > Netscaler Gateway Firmware is made by Citrix. We track 31 published vulnerabilities in it, across 35 versions. 4 of them are on the list of flaws known to be exploited, the newest added on 3 November 2021. If you run Netscaler Gateway Firmware, check your version against the exploited flaws below and patch those first. Canonical page: https://www.edgeprotect.io/product/citrix/netscaler_gateway_firmware ## At a glance - **Made by:** [Citrix](https://www.edgeprotect.io/vendors/citrix) - **Published vulnerabilities:** 31 - **Known to be exploited:** 4 - **Versions tracked:** 35 - **Most recently added to the known-exploited list:** [CVE-2019-19781](https://www.edgeprotect.io/what-is/cve-2019-19781), 3 November 2021. We keep watching the list. ## Which versions of Netscaler Gateway Firmware do the exploited flaws hit? Each exploited flaw lists the versions it affects, as published. "10.5 to before 10.5-70.18" means from 10.5 up to, but not including, 10.5-70.18. - [CVE-2019-19781](https://www.edgeprotect.io/what-is/cve-2019-19781) (Citrix ADC, Gateway, and SD-WAN WANOP Appliance Code Execution Vulnerability): 10.5, 11.1, 12.0, 12.1 - [CVE-2020-8193](https://www.edgeprotect.io/what-is/cve-2020-8193) (Citrix ADC, Gateway, and SD-WAN WANOP Appliance Authorization Bypass Vulnerability): 10.5 to before 10.5-70.18, 11.1 to before 11.1-64.14, 12.0 to before 12.0-63.21, 12.1 to before 12.1-57.18 - [CVE-2020-8195](https://www.edgeprotect.io/what-is/cve-2020-8195) (Citrix ADC, Gateway, and SD-WAN WANOP Appliance Information Disclosure Vulnerability): 10.5 to before 10.5-70.18, 11.1 to before 11.1-64.14, 12.0 to before 12.0-63.21, 12.1 to before 12.1-57.18 - [CVE-2020-8196](https://www.edgeprotect.io/what-is/cve-2020-8196) (Citrix ADC, Gateway, and SD-WAN WANOP Appliance Information Disclosure Vulnerability): 10.5 to before 10.5-70.18, 11.1 to before 11.1-64.14, 12.0 to before 12.0-63.21, 12.1 to before 12.1-57.18 ## Which Netscaler Gateway Firmware vulnerabilities are being exploited? 4 flaws are on the government list of vulnerabilities known to be exploited, newest first: - [CVE-2019-19781](https://www.edgeprotect.io/what-is/cve-2019-19781): Citrix ADC, Gateway, and SD-WAN WANOP Appliance Code Execution Vulnerability. Critical, CVSS 9.8, chance of use in 30 days >99%, known exploited since 3 November 2021. - [CVE-2020-8193](https://www.edgeprotect.io/what-is/cve-2020-8193): Citrix ADC, Gateway, and SD-WAN WANOP Appliance Authorization Bypass Vulnerability. Medium, CVSS 6.5, chance of use in 30 days 88%, known exploited since 3 November 2021. - [CVE-2020-8195](https://www.edgeprotect.io/what-is/cve-2020-8195): Citrix ADC, Gateway, and SD-WAN WANOP Appliance Information Disclosure Vulnerability. Medium, CVSS 6.5, chance of use in 30 days 33%, known exploited since 3 November 2021. - [CVE-2020-8196](https://www.edgeprotect.io/what-is/cve-2020-8196): Citrix ADC, Gateway, and SD-WAN WANOP Appliance Information Disclosure Vulnerability. Medium, CVSS 4.3, chance of use in 30 days 26%, known exploited since 3 November 2021. ## Which Netscaler Gateway Firmware flaws are most likely to be used? Ranked by the latest exploit-likelihood forecast (the chance each flaw is used in an attack in the next 30 days): - [CVE-2019-19781](https://www.edgeprotect.io/what-is/cve-2019-19781): >99%, Critical (CVSS 9.8), known exploited - [CVE-2020-8193](https://www.edgeprotect.io/what-is/cve-2020-8193): 88%, Medium (CVSS 6.5), known exploited - [CVE-2020-8195](https://www.edgeprotect.io/what-is/cve-2020-8195): 33%, Medium (CVSS 6.5), known exploited - [CVE-2020-8196](https://www.edgeprotect.io/what-is/cve-2020-8196): 26%, Medium (CVSS 4.3), known exploited - [CVE-2020-8191](https://www.edgeprotect.io/what-is/cve-2020-8191): 23%, Medium (CVSS 6.1) - [CVE-2017-17382](https://www.edgeprotect.io/what-is/cve-2017-17382): 14%, Medium (CVSS 5.9) - [CVE-2020-8194](https://www.edgeprotect.io/what-is/cve-2020-8194): 11%, Medium (CVSS 6.5) - [CVE-2018-7218](https://www.edgeprotect.io/what-is/cve-2018-7218): 8.2%, Critical (CVSS 9.8) - [CVE-2017-7219](https://www.edgeprotect.io/what-is/cve-2017-7219): 4.9%, High (CVSS 8.8) - [CVE-2018-6810](https://www.edgeprotect.io/what-is/cve-2018-6810): 4.6%, High (CVSS 7.5) ## Questions ### How many vulnerabilities does Netscaler Gateway Firmware have? We track 31 published vulnerabilities listed under the name Netscaler Gateway Firmware, across 35 versions. The most recent Netscaler Gateway Firmware flaw added to the known-exploited list is CVE-2019-19781, on 3 November 2021. ### Which Netscaler Gateway Firmware vulnerabilities are being exploited? 4 are on the list of flaws known to be exploited. The most recently added are CVE-2019-19781, CVE-2020-8193 and CVE-2020-8195. ### Which versions of Netscaler Gateway Firmware do the exploited flaws affect? Each flaw names its own versions, usually as ranges. The newest, CVE-2019-19781, affects 10.5, 11.1, 12.0, 12.1. The versions for every exploited flaw are listed on this page. ### How do I get alerts for Netscaler Gateway Firmware? Create a EdgeProtect account and track Netscaler Gateway Firmware. We match it against every published flaw, give each one a risk score from 0 to 100 and keep watching, so you hear about new ones as soon as we know, by email, in the app or by webhook. ## Running Netscaler Gateway Firmware? EdgeProtect keeps checking for you: - **Tell us what you run.** Pick your software from a list, or let us work it out from your website. - **We match it to every flaw.** Over 400,000 published flaws, checked against your list. - **Ranked by real-world risk.** Every flaw gets a 0 to 100 risk score, kept up to date, led by evidence criminals are using it. - **Told as soon as we know.** An alert by email, in the app or by webhook to your own tools. Start free (no card, nothing to install): https://www.edgeprotect.io/register Book a demo: https://www.edgeprotect.io/contact