CISA Known Exploited Vulnerability (KEV)
Citrix NetScaler ADC and Gateway Buffer Overflow Vulnerability
June 30, 2025
July 21, 2025
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Description
Memory overflow vulnerability leading to unintended control flow and Denial of Service in NetScaler ADC and NetScaler Gateway when configured as Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) OR AAA virtual server
Weakness Enumeration
| CWE-ID | CWE Name |
|---|---|
|
CWE-119 |
Improper Restriction of Operations within the Bounds of a Memory Buffer |