Citrix vulnerabilities being exploited
6 Citrix flaws were confirmed exploited in the wild in the past 365 days, across 2 products: NetScaler, NetScaler ADC and NetScaler Gateway. If you run any of them, patch these first.
| Added | Exploited vulnerability | Fix by |
|---|---|---|
| 2026-10-04 | CVE-2026-88779 NetScaler Citrix NetScaler Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability Citrix NetScaler ADC (formerly Citrix ADC) and Citrix NetScaler Gateway (formerly Citrix Gateway) contain an improper restriction of operations within the bounds of a memory buffer vulnerability that could allow for a denial of service. | 2026-10-07 |
| 2026-09-27 | CVE-2026-88772 NetScaler Citrix NetScaler Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability Citrix NetScaler ADC and NetScaler Gateway contain an improper restriction of operations within the bounds of a memory buffer vulnerability that could allow for remote code execution or denial of service | 2026-09-30 |
| 2026-09-27 | CVE-2026-88771 NetScaler Citrix NetScaler Improper Input Validation Vulnerability Citrix NetScaler ADC and NetScaler Gateway contain an improper input validation vulnerability that could allow an unauthenticated attacker to execute arbitrary commands. | 2026-09-30 |
| 2026-09-09 | CVE-2026-19490 NetScaler Citrix NetScaler Authentication Bypass Using an Alternate Path or Channel Vulnerability Citrix NetScaler ADC and NetScaler Gateway contain an authentication-bypass vulnerability involving an alternate path or channel. When the NetScaler appliance is configured as an AAA virtual server or as a Gateway (SSL VPN, ICA Proxy, CVPN, or RDP Proxy), an unauthenticated remote threat actor may be able to bypass authentication. | 2026-09-12 |
| 2026-08-26 | CVE-2026-8452 NetScaler ADC and NetScaler Gateway Citrix NetScaler ADC and NetScaler Gateway Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability Citrix NetScaler ADC and NetScaler Gateway contain an improper restriction of operations within the bounds of a memory buffer vulnerability which could lead to denial of service. | 2026-08-29 |
| 2026-03-30 | CVE-2026-3055 NetScaler Citrix NetScaler Out-of-Bounds Read Vulnerability Citrix NetScaler ADC (formerly Citrix ADC), NetScaler Gateway (formerly Citrix Gateway) and NetScaler ADC FIPS and NDcPP contain an out-of-bounds reads vulnerability when configured as a SAML IDP leading to memory overread. | 2026-04-02 |
Source: CISA Known Exploited Vulnerabilities catalog 2026.10.30 (live). A listing means some versions are affected: check yours in the advisory. Guidance only.