Citrix · NetScaler
CVE-2025-7775
Memory overflow vulnerability leading to Remote Code Execution and/or Denial of Service
Was es ist
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: Citrix NetScaler ADC and NetScaler Gateway contain a memory overflow vulnerability that could allow for remote code execution and/or denial of service.
Was zu tun ist
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Frist für US-Bundesbehörden: 28. August 2025
Weitere ausgenutzte Schwachstellen von Citrix
| Hinzugefügt | Schwachstelle | Produkt | Schweregrad | Angriffswahrscheinlichkeit |
|---|---|---|---|---|
| 04.10.2026 | Improper Restriction of Operations within the Bounds of a Memory Buffer | NetScaler | Hoch 8,7 | 11% |
| 27.09.2026 | Improper Input Validation | NetScaler | Kritisch 9,5 | 82% |
| 27.09.2026 | Improper Restriction of Operations within the Bounds of a Memory Buffer | NetScaler | Kritisch 9,5 | 78% |
| 09.09.2026 | Authentication Bypass Using an Alternate Path or Channel | NetScaler | Kritisch 9,3 | 33% |
| 30.03.2026 | Out-of-Bounds Read | NetScaler | Kritisch 9,3 | 91% |
| 26.08.2026 | Improper Restriction of Operations within the Bounds of a Memory Buffer | NetScaler ADC and NetScaler Gateway | Hoch 8,8 | 1,0% |
| 25.08.2025 | Improper Privilege Management | Session Recording | Mittel 5,1 | 3,5% |
| 25.08.2025 | Deserialization of Untrusted Data | Session Recording | Mittel 5,1 | 21% |
Quellen: Known Exploited Vulnerabilities (CISA, gemeinfrei), CVE records (cve.org) und EPSS (FIRST). Die Angriffswahrscheinlichkeit ist die EPSS-Schätzung, dass jemand in den nächsten 30 Tagen versucht, die Schwachstelle auszunutzen.