Memory corruption in Citrix ADC
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
Memory overflow vulnerability leading to unpredictable or erroneous behavior and Denial of Service in NetScaler ADC and NetScaler Gateway when NetScaler is configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) with PCoIP Profile bounded to it
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Citrix | ADC | 14.1 to before 47.48; 13.1 to before 59.22; 13.1 FIPS and NDcPP to before 37.241; 12.1 FIPS and NDcPP to before 55.330 | 47.48, 59.22, 37.241, 55.330 | Patch available | CNA |
| Citrix | Gateway | 14.1 to before 47.48; 13.1 to before 59.22; 13.1 FIPS and NDcPP to before 37.241; 12.1 FIPS and NDcPP to before 55.330 | 47.48, 59.22, 37.241, 55.330 | Patch available | CNA |
- ADC VendorCitrix Affected 14.1 to before 47.48; 13.1 to before 59.22; 13.1 FIPS and NDcPP to before 37.241; 12.1 FIPS and NDcPP to before 55.330 Fixed in 47.48, 59.22, 37.241, 55.330 Patch available CNA
- Gateway VendorCitrix Affected 14.1 to before 47.48; 13.1 to before 59.22; 13.1 FIPS and NDcPP to before 37.241; 12.1 FIPS and NDcPP to before 55.330 Fixed in 47.48, 59.22, 37.241, 55.330 Patch available CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:* | 12.1 to before 12.1-55.330 | Vulnerable | Citrix |
| cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:* | 12.1 to before 12.1-55.330 | Vulnerable | Citrix |
| cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:* | 13.1 to before 13.1-37.241 | Vulnerable | Citrix |
| cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:* | 13.1 to before 13.1-37.241 | Vulnerable | Citrix |
| cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:* | 13.1 to before 13.1-59.22; 14.1 to before 14.1-47.48 | Vulnerable | Citrix |
| cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:* | 13.1 to before 13.1-59.22; 14.1 to before 14.1-47.48 | Vulnerable | Citrix |
- cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:* Versions 12.1 to before 12.1-55.330 Vulnerable ·Citrix
- cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:* Versions 12.1 to before 12.1-55.330 Vulnerable ·Citrix
- cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:* Versions 13.1 to before 13.1-37.241 Vulnerable ·Citrix
- cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:* Versions 13.1 to before 13.1-37.241 Vulnerable ·Citrix
- cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:* Versions 13.1 to before 13.1-59.22; 14.1 to before 14.1-47.48 Vulnerable ·Citrix
- cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:* Versions 13.1 to before 13.1-59.22; 14.1 to before 14.1-47.48 Vulnerable ·Citrix
Remediation
- Fix · CNA ADC (NetScaler) Fixed in 47.48, 59.22, 37.241, 55.330
- Fix · CNA Gateway (NetScaler) Fixed in 47.48, 59.22, 37.241, 55.330
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
NetScaler ADC, Gateway 37.241, 47.48 and 2 more versions
3 records Highest priority Priority CRITICAL 1 CRITICAL, 2 MEDIUM
Other records, highest priority first
- TI-2025-07100 Memory corruption in Citrix ADCPriority CRITICAL 99
- TI-2025-07710 Improper access control on the NetScaler Management InterfacePriority MEDIUM 46
Timeline
- 2026-10-02 Threatist record created from CVE-2025-7776
- 2026-10-03 Alias added: GHSA-rppg-589c-3659
- 2026-10-25 EPSS moved to the 95th–99th percentile
References
More Citrix Netscaler Application Delivery Controller vulnerabilities
- TI-2026-60195 Memory overflow vulnerability leading to Remote Code Execution or Denial of Service KEVCVSS 4.0CRITICAL 9.5
- TI-2026-60194 Improper input validation in Citrix ADC KEVCVSS 4.0CRITICAL 9.5
- TI-2023-04571 Unauthenticated sensitive information disclosure in Citrix NetScaler ADC KEVCVSS 3.1CRITICAL 9.4
- TI-2023-03284 Unauthenticated remote code execution in Citrix NetScaler ADC KEVCVSS 3.1CRITICAL 9.8
- TI-2026-15872 NetScaler ADC and NetScaler Gateway Security Bulletin for CVE-2026-19490 KEVCVSS 4.0CRITICAL 9.3
- TI-2026-02639 Insufficient input validation leading to memory overread KEVCVSS 4.0CRITICAL 9.3
Sources
- CVE-2025-7776 · CVE Program
- CVE-2025-7776 · NVD
- FIRST EPSS
- GHSA-rppg-589c-3659 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences