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    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

    Published:Aug 26, 2025
    Last Modified:Feb 26, 2026
    EPS:Aug 26, 2025
    EPSS Score:0.10621
    CVSS Score:9.8

    CISA Notification

    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

    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.

    Notes:

    No extra notes provided.

    Due Date
    Aug 28, 2025
    379 days ago
    Alert Date
    Aug 26, 2025
    381 days ago

    Affected Products

    Vendor
    Citrix
    Product
    Netscaler Application Delivery Controller
    Vendor
    Citrix
    Product
    Netscaler Gateway
    Vendor
    Netscaler
    Product
    Adc
    Vendor
    Netscaler
    Product
    Gateway

    Exploits

    https://github.com/Aaqilyousuf/CVE-2025-7775-vulnerable-labhttps://github.com/hacker-r3volv3r/CVE-2025-7775-PoChttps://github.com/mr-r3b00t/CVE-2025-7775https://github.com/rxerium/CVE-2025-7775https://github.com/swabird/CVE-2025-7775-PoC

    Related CVEs

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    CVE-2026-3055 (CVSS 9.3) — Insufficient input validation in NetScaler ADC and NetScaler Gateway when configured as a SAML IDP leading to …
    CVE-2025-7776 (CVSS 8.8) — Memory overflow vulnerability leading to unpredictable or erroneous behavior and Denial of Service in NetScale…
    CVE-2025-6543 (CVSS 9.2) — Memory overflow vulnerability leading to unintended control flow and Denial of Service in NetScaler ADC and Ne…
    CVE-2025-5349 (CVSS 8.7) — Improper access control on the NetScaler Management Interface in NetScaler ADC and NetScaler Gateway…
    CVE-2025-5777 (CVSS 9.3) — Insufficient input validation leading to memory overread when the NetScaler is configured as a Gateway (VPN vi…
    CVE-2024-8535 (CVSS 5.8) — Authenticated user can access unintended user capabilities in NetScaler ADC and NetScaler Gateway if the appli…
    CVE-2024-8534 (CVSS 8.4) — Memory safety vulnerability leading to memory corruption and Denial of Service in NetScaler ADC and Gateway if…
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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High