Citrix: >> Netscaler Application Delivery Controller >> 14.1-47.48 Security Vulnerabilities
CVE-2026-19490
Vulnerability in NetScaler ADC and NetScaler Gateway.
This issue affects ADC: from 14.1 through 73.32 and from 13.1 through 63.21; Gateway: from 14.1 through 73.32 and from 13.1 through 63.21.
Known exploited
CVSS Score
9.3
EPSS Score
0.056
Published
2026-08-19
Multiple Memory overflow vulnerabilities in NetScaler ADC and NetScaler Gateway leading to unpredictable or erroneous behavior and Denial of Service if NetScaler ADC is configured as an LB of type Oracle OR NetScaler ADC is configured as a DNS Proxy OR NetScaler ADC is configured as a DNS recursive resolver deployment
CVSS Score
8.8
EPSS Score
0.006
Published
2026-06-30
Insufficient input validation in NetScaler ADC and NetScaler Gateway leading to memory overread if NetScaler ADC or NetScaler Gateway is configured as a SAML IDP
CVSS Score
8.8
EPSS Score
0.157
Published
2026-06-30
CVE-2026-8452
Memory overflow vulnerability NetScaler ADC and NetScaler Gateway leading to unpredictable or erroneous behavior and Denial of Service if the appliance is configured as a Gateway (SSL VPN, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server
Known exploited
CVSS Score
8.8
EPSS Score
0.016
Published
2026-06-30
Denial of service via malformed HTTP/2 requests in NetScaler ADC and NetScaler Gateway if HTTP/2 is enabled in HTTP Profile and associated with the virtual server (of type LB, CS, VPN) or the service configured on NetScaler
CVSS Score
8.7
EPSS Score
0.006
Published
2026-06-30
Arbitrary File Read (Unauthenticated) in NetScaler ADC and NetScaler Gateway if the access to NSIP, Cluster Management IP or SNIP with management access is enabled
CVSS Score
7.1
EPSS Score
0.006
Published
2026-06-30
Insufficient input validation leading to memory overread in NetScaler ADC and NetScaler Gateway if the TCP TimeStamp is enabled in TCP Profile and is associated with the virtual server (of type LB, CS, VPN) or the service configured on NetScaler
CVSS Score
6.9
EPSS Score
0.006
Published
2026-06-30
CVE-2026-3055
Insufficient input validation in NetScaler ADC and NetScaler Gateway when configured as a SAML IDP leading to memory overread
Known exploited
CVSS Score
9.3
EPSS Score
0.872
Published
2026-03-23