# 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

- Page: https://www.vulneraibility.com/cve/CVE-2025-7775
- CVSS: 9.8
- Known exploited: yes, in CISA KEV since 2025-08-26; CISA due date 2025-08-28
- EPSS: 20.67%
- Unvetted proof-of-concept code on GitHub: 4 GitHub proofs of concept (first 2025-08-28)
- CISA SSVC: exploitation active, automatable no, technical impact total (assessed 2025-08-27)
- Weakness: CWE-119
- Published: 2025-08-26

## Affected versions

- NetScaler ADC: affected >= 14.1 and < 47.48; >= 13.1 and < 59.22; >= 13.1 FIPS and NDcPP and < 37.241; >= 12.1 FIPS and NDcPP and < 55.330
- NetScaler Gateway: affected >= 14.1 and < 47.48; >= 13.1 and < 59.22; >= 13.1 FIPS and NDcPP and < 37.241; >= 12.1 FIPS and NDcPP and < 55.330

A version outside these ranges is not a statement that it is unaffected.

## References

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

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.