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CVE-2025-7775

Published: Aug 26, 2025Updated: Oct 24, 2025 Sources: CVE List NVD BDUCWE-119
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
19.0%
Top 3.1%
CISA KEV
Active Exploitation
Since Aug 26, 2025
Exploits
No Known Exploits
Remediation
Patch Available

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

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-119

Affected Products

Citrix ADCCitrix Systems Inc.
SaaSSaaS Service
Cloud & SaaS / api-gateway
NetScaler GatewayCitrix Systems Inc.
Mixed
Cloud & SaaS
ADCNetScaler
On-prem
Networking Infrastructure / load-balancer-proxy
GatewayNetScaler
On-prem
Networking Infrastructure / load-balancer-proxy
netscaler application delivery controllercitrix
On-premNetwork Device
Networking Infrastructure / load-balancer-proxy
citrix systems inc.commercialUSCloud & SaaSaka citrix adc, netscaler gateway, citrix gateway
netscalercommercialNetworking Infrastructure
citrixcommercialUSCloud & SaaSaka xenserver, netscaler gateway firmware, application delivery controller firmware
and 1 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

CISA Known Exploited Vulnerability
Added to KEV:Aug 26, 2025
Remediation due:Aug 28, 2025

Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX694938
support.citrix.com
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-7775
cisa.gov

Timeline

Added to CISA KEV
Aug 26, 2025
Published
Aug 26, 2025
Last Updated
Oct 24, 2025

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