CVE-2025-7775

Known Exploited
Memory overflow vulnerability leading to Remote Code Execution and/or Denial of Service

Description

Memory overflow vulnerability leading to Remote Code Execution and/or Denial of Service in NetScaler ADC and NetScaler Gateway when NetScaler is configured as Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server (OR) NetScaler ADC and NetScaler Gateway 13.1, 14.1, 13.1-FIPS and NDcPP: LB virtual servers of type (HTTP, SSL or HTTP_QUIC) bound with IPv6 services or servicegroups bound with IPv6 servers (OR) NetScaler ADC and NetScaler Gateway 13.1, 14.1, 13.1-FIPS and NDcPP: LB virtual servers of type (HTTP, SSL or HTTP_QUIC) bound with DBS IPv6 services or servicegroups bound with IPv6 DBS servers (OR) CR virtual server with type HDX

Category

9.2
CVSS
Severity: Critical
CVSS 4.0 •
CVSS 3.1 •
EPSS 7.67% Top 10%
KEV Since 
Vendor Advisory citrix.com
Affected: NetScaler ADC
Affected: NetScaler Gateway
Published at:
Updated at:

References

Link Tags
https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX694938 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2025-7775?
CVE-2025-7775 has been scored as a critical severity vulnerability.
How to fix CVE-2025-7775?
To fix CVE-2025-7775, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-7775 being actively exploited in the wild?
It is confirmed that CVE-2025-7775 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~8% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-7775?
CVE-2025-7775 affects NetScaler ADC, NetScaler Gateway.
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