CVE-2025-7775
Memory overflow vulnerability leading to Remote Code Execution and/or Denial of Service
In short
A memory overflow flaw in NetScaler ADC and Gateway can allow attackers to execute arbitrary code or crash the system, depending on how the device is configured (VPN, AAA, load balancing with IPv6, or HDX services). This is a critical issue because it can give attackers complete control or disrupt service.
Technical detail
CWE-119 memory overflow vulnerability affecting NetScaler ADC/Gateway across multiple configurations: Gateway/AAA virtual servers, LB servers with IPv6 backends, and HDX CR servers. Remote attacker can trigger buffer overflow via crafted requests, leading to RCE or DoS without requiring authentication in certain configurations.
Summary generated and translated by AI from the official 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
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
public PoCs found — 4
githubgithub.com/swabird/CVE-2025-7775-PoC★ 4githubgithub.com/rxerium/CVE-2025-7775★ 2githubgithub.com/mr-r3b00t/CVE-2025-7775★ 1githubgithub.com/Aaqilyousuf/CVE-2025-7775-vulnerable-lab★ 0⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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