# CVE-2025-7775: 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. CVSS 9.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2025-7775
Last updated: 2026-06-17T10:05:38Z

- Published: 2025-08-26 12:56 UTC · Updated: 2026-06-17 10:05 UTC · Assigner: Citrix
- CVSS: 9.8 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS: 20.3%, 97th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2025-08-26, federal due date 2025-08-28, ransomware use: Unknown
- CWE: CWE-119

## 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

## CISA 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.

## Affected vendors and products

- NetScaler: ADC
- NetScaler: Gateway

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2025-7775)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2025-7775)
- [https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX694938](https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX694938)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2025-7775 · Markdown: https://rewindex.com/cve/CVE-2025-7775.md · JSON: https://rewindex.com/api/v1/cves/CVE-2025-7775 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:09:16.869Z