--- title: "CVE-2025-7775: Memory overflow vulnerability leading… | CubePath" description: "Memory overflow vulnerability leading to Remote Code Execution and/or Denial of Service in NetScaler ADC and NetScaler Gateway when NetScaler…" language: en source: https://cubepath.com/security/cve/CVE-2025-7775 --- # CVE-2025-7775: Memory overflow vulnerability leading… | CubePath ## 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 Official description from the CVE record, published by Citrix. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2025-7775) ## Key data ### CVSS 4.0 Critical 9.2 Score published by Citrix in the CVE record. CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L | Metric | Value | What it means | | ----------------------------------- | ------- | -------------------------------------------------------------------------------------------------------------- | | Attack vector | Network | The vulnerable component can be reached over a network, possibly from the Internet. | | Attack complexity | High | The attacker has to evade or get around security controls that are in place, which takes target-specific work. | | Attack requirements | Present | The attack depends on certain deployment or execution conditions being present. | | Privileges required | None | No account or privileges are needed. | | User interaction | None | No action from any user is needed. | | Vulnerable system: confidentiality | High | Serious or total effect on the secrecy of data. | | Vulnerable system: integrity | High | Serious or total effect on the trustworthiness of data. | | Vulnerable system: availability | High | Serious or total effect on availability. | | Subsequent systems: confidentiality | Low | Limited effect on other systems' data secrecy. | | Subsequent systems: integrity | Low | Limited effect on other systems' data trustworthiness. | | Subsequent systems: availability | Low | Limited effect on other systems' availability. | CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at [first.org/cvss](https://www.first.org/cvss/) . ### EPSS Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days. Score 0.20670 (20.7% probability) Percentile 97.5% Scores of Nov 10, 2026 Model v2026.06.15 ### CISA Known Exploited Vulnerabilities This CVE is listed in the CISA KEV catalog. Name in the catalog Citrix NetScaler Memory Overflow Vulnerability Added to the catalog Aug 26, 2025 Federal due date Aug 28, 2025 ### CISA assessment as of Aug 27, 2025 Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA. Exploitation Recorded by CISA as active Automatable no Technical impact total ### Weakness (CWE) CWE catalog version 5.0. CWE names: Copyright © 2006-2026, The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CWE license. - [CWE-119](https://cwe.mitre.org/data/definitions/119.html) Improper Restriction of Operations within the Bounds of a Memory Buffer ## Affected products Products listed in the CVE record, as the CNA published them. - NetScaler ADC - affected: 14.1 up to before 47.48 - affected: 13.1 up to before 59.22 - affected: 13.1 FIPS and NDcPP up to before 37.241 - affected: 12.1 FIPS and NDcPP up to before 55.330 - NetScaler Gateway - affected: 14.1 up to before 47.48 - affected: 13.1 up to before 59.22 - affected: 13.1 FIPS and NDcPP up to before 37.241 - affected: 12.1 FIPS and NDcPP up to before 55.330 ## References Links listed in the CVE record. They lead to other sites, which CubePath does not control. - [support.citrix.com/support-home/kbsearch/article?articleNum…](https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX694938) ## Timeline 1. ID reserved Jul 17, 2025 2. Added to CISA KEV Aug 26, 2025 3. Record published Aug 26, 2025 4. Record last updated Feb 26, 2026 ## Look up another CVE ## About CubePath CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection. [Cloud VPS](https://cubepath.com/vps) [DDoS protection](https://cubepath.com/ddos-protection) Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 20:02 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)