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CVE-2025-5777

9.3 critical KEV · due 2025-07-11 ransomware exploit ×27 SSVC exploitation: active Analyzed
NVD · CVE.org · CISA KEV

Insufficient input validation leading to memory overread when the NetScaler is configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) OR AAA virtual server

Fix

Public exploits 27

Each line links to the index that lists it, never to exploit code. Exploit-DB's "verified" and a Metasploit rank of good or better count as verified; a PoC-in-GitHub entry is a repository's claim.

CISA KEV required action · due 2025-07-11

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Added to the catalog 2025-07-10. CISA KEV

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

In the news 3

Change history 1

  1. First seenCVSS 9.3 · in KEV · citrixNVD modified 2026-10-08 10:35

Affected (CPE criteria) 4

  • cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*
  • cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:*
  • cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*
  • cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*

References 10