Vulnerability Intelligence Report
Memory overflow vulnerability leading to Remote Code Execution and/or Denial of Service
CVE-2025-7775
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
CISA KEV
SSVC: Active Exploitation
CVSS Base Score
9.2
CRITICAL
EPSS Probability:18.97%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-119 ↗CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| NetScaler | ADC | 14.1 < 47.48 (affected), 13.1 < 59.22 (affected), 13.1 FIPS and NDcPP < 37.241 (affected), 12.1 FIPS and NDcPP < 55.330 (affected) |
| NetScaler | Gateway | 14.1 < 47.48 (affected), 13.1 < 59.22 (affected), 13.1 FIPS and NDcPP < 37.241 (affected), 12.1 FIPS and NDcPP < 55.330 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Citrix Systems, Inc. · Vendor · USA |
| Reserved | 2025-07-17T20:39:14 |
| Published | 2025-08-26T12:56:53 |
| Patch Date | 2025-08-26 |
| Last Updated | 2026-02-26T17:48:12 |
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