// tag

NetScaler

Security incidents tagged NetScaler. Newest first.

## 3 NetScaler incidents in the last year

through Oct 22, 2026

crit 4 · high 3 · med 2 · low 1 · upd ½severity-weighted: critical 4 · high 3 · medium 2 · low 1 · update ½lessmore

Oct 4highCitrix NetScaler: Citrix NetScaler Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerabilitypatched
› Citrix NetScaler patched
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. Added to CISA KEV on 2026-10-04.
open incident →CVE-2026-88779

show 2 older incidents

Sep 9highCitrix NetScaler: Citrix NetScaler Authentication Bypass Using an Alternate Path or Channel Vulnerabilitypatched
› Citrix NetScaler patched
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. Added to CISA KEV on 2026-09-09.
open incident →CVE-2026-19490

Mar 30highCitrix NetScaler: Citrix NetScaler Out-of-Bounds Read Vulnerabilitypatched
› Citrix NetScaler patched
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. Added to CISA KEV on 2026-03-30.
open incident →CVE-2026-3055