Technology · Citrix
Citrix NetScaler Gateway vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 25 vulnerabilities in Citrix NetScaler Gateway: 0 in the last 7 days and 10 in the last 90 days, 16 of them critical and 15 exploited in the wild. The most recent, CVE-2026-53713, was published on 14 September 2026.
- Last 7 days
- 0
- Last 90 days
- 10
- Critical, all time
- 16
- Exploited in the wild
- 15
About Citrix NetScaler Gateway
A secure remote access solution providing VPN, load balancing, and application delivery capabilities.
Latest Citrix NetScaler Gateway vulnerabilities
- CVE-2026-53713: Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway…criticalCVSS 9.1EPSS 0.4%
- CVE-2026-19490: Citrix NetScaler authentication bypass via alternate pathcriticalexploited in the wildCVSS 9.8EPSS 7.0%
- CVE-2026-82270: Portkey AI Gateway server-side request forgery in /v1/proxy/highCVSS 7.5EPSS 0.5%
- CVE-2026-81664: OpenFaaS gateway missing authentication on /system/telemetry endpointmediumCVSS 5.3EPSS 0.4%
- CVE-2026-8655: NetScaler ADC and Gateway memory overflows in DNS and Oracle LBinfoCVSS 8.8
- CVE-2026-8452: NetScaler ADC and Gateway memory overflow in Gateway or AAA virtual servercriticalexploited in the wildCVSS 8.8EPSS 1.0%
- CVE-2026-8451: NetScaler ADC and Gateway memory overread in SAML IdPinfoCVSS 8.8
- CVE-2026-13474: NetScaler ADC and Gateway denial of service via malformed HTTP/2 requestsinfoCVSS 8.7
- CVE-2026-10817: NetScaler ADC and Gateway memory overread in TCP TimeStamp handlinginfoCVSS 6.9
- CVE-2026-10816: Citrix NetScaler ADC and Gateway arbitrary file read in management interfaceinfo
- CVE-2026-3055: Citrix NetScaler out-of-bounds read in SAML IdPcriticalexploited in the wildCVSS 9.8EPSS 74.1%
- CVE-2026-4368: Race Condition in NetScaler ADC and NetScaler Gateway when appliance is configured as Gateway (SSL VPN, ICA Proxy, CVPN…infoCVSS 7.7
- CVE-2025-66405: Portkey.ai Gateway Server-Side Request Forgery in custom host headermediumCVSS 4EPSS 0.4%
- CVE-2025-7775: Citrix NetScaler memory overflow in ADC and Gatewaycriticalexploited in the wildCVSS 9.8EPSS 9.8%
- CVE-2025-5777: Citrix NetScaler ADC and Gateway out-of-bounds readcriticalexploited in the wildCVSS 9.3EPSS 65.0%
- CVE-2025-6543: Citrix NetScaler ADC and Gateway buffer overflowcriticalexploited in the wildCVSS 9.8EPSS 0.9%
- CVE-2023-6548: Citrix NetScaler ADC and NetScaler Gateway Code Injection Vulnerabilitycriticalexploited in the wildCVSS 8.8
- CVE-2023-6549: Citrix NetScaler ADC and NetScaler Gateway Buffer Overflow Vulnerabilitycriticalexploited in the wildCVSS 8.2
- CVE-2023-4966: Citrix NetScaler ADC and NetScaler Gateway Buffer Overflow Vulnerabilitycriticalexploited in the wildCVSS 9.4
- CVE-2023-3519: Citrix NetScaler ADC and NetScaler Gateway Code Injection Vulnerabilitycriticalexploited in the wildCVSS 9.8
- CVE-2022-27518: Citrix Application Delivery Controller (ADC) and Gateway Authentication Bypass Vulnerabilitycriticalexploited in the wildCVSS 9.8
- CVE-2020-8193: Citrix ADC, Gateway, and SD-WAN WANOP Appliance Authorization Bypass Vulnerabilitycriticalexploited in the wildCVSS 6.5
- CVE-2019-19781: Citrix ADC, Gateway, and SD-WAN WANOP Appliance Code Execution Vulnerabilitycriticalexploited in the wildCVSS 9.8
- CVE-2020-8195: Citrix ADC, Gateway, and SD-WAN WANOP Appliance Information Disclosure Vulnerabilitycriticalexploited in the wildCVSS 6.5
- CVE-2020-8196: Citrix ADC, Gateway, and SD-WAN WANOP Appliance Information Disclosure Vulnerabilitycriticalexploited in the wildCVSS 4.3
Most severe Citrix NetScaler Gateway vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-3055: Citrix NetScaler out-of-bounds read in SAML IdPcriticalexploited in the wildCVSS 9.8EPSS 74.1%
- CVE-2025-7775: Citrix NetScaler memory overflow in ADC and Gatewaycriticalexploited in the wildCVSS 9.8EPSS 9.8%
- CVE-2026-19490: Citrix NetScaler authentication bypass via alternate pathcriticalexploited in the wildCVSS 9.8EPSS 7.0%
- CVE-2025-6543: Citrix NetScaler ADC and Gateway buffer overflowcriticalexploited in the wildCVSS 9.8EPSS 0.9%
- CVE-2023-3519: Citrix NetScaler ADC and NetScaler Gateway Code Injection Vulnerabilitycriticalexploited in the wildCVSS 9.8
- CVE-2022-27518: Citrix Application Delivery Controller (ADC) and Gateway Authentication Bypass Vulnerabilitycriticalexploited in the wildCVSS 9.8
- CVE-2019-19781: Citrix ADC, Gateway, and SD-WAN WANOP Appliance Code Execution Vulnerabilitycriticalexploited in the wildCVSS 9.8
- CVE-2023-4966: Citrix NetScaler ADC and NetScaler Gateway Buffer Overflow Vulnerabilitycriticalexploited in the wildCVSS 9.4
- CVE-2025-5777: Citrix NetScaler ADC and Gateway out-of-bounds readcriticalexploited in the wildCVSS 9.3EPSS 65.0%
- CVE-2026-8452: NetScaler ADC and Gateway memory overflow in Gateway or AAA virtual servercriticalexploited in the wildCVSS 8.8EPSS 1.0%
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 29 Jun 2026 | 6 | 1 | |
| 6 Jul 2026 | 0 | 0 | |
| 13 Jul 2026 | 0 | 0 | |
| 20 Jul 2026 | 0 | 0 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 2 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 1 | 1 | |
| 14 Sep 2026 | 1 | 1 | |
| 21 Sep 2026 | 0 | 0 |
How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/gateway.json, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Citrix NetScaler Gateway vulnerabilities", https://junglewise.ai/threats/technologies/gateway, 26 September 2026.