Exploited Vulnerabilities DailyCVE-2025-6543: Citrix NetScaler ADC and Gateway
EPSS10.5%No. 1270 of 1739 in KEV
CVE year2025listed the same year
Same vendor in KEV27
Same product2
| Field | Value |
|---|---|
| Vendor | Citrix |
| Product | NetScaler ADC and Gateway |
| Name | Citrix NetScaler ADC and Gateway Buffer Overflow Vulnerability |
| Added to KEV | 2025-06-30 |
| US federal due date | 2025-07-21 |
| Ransomware use | Unknown |
| CWE | CWE-119 |
CISA description
Citrix NetScaler ADC and Gateway contain a buffer overflow vulnerability leading to unintended control flow and Denial of Service. NetScaler must be configured as Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) OR AAA virtual server.
Other entries for this product
| CVE | Vendor / product | Added | EPSS | Ransomware |
|---|---|---|---|---|
| CVE-2025-5777 | Citrix NetScaler ADC and Gateway | 2025-07-10 | 99.9% | Known |
Data from CISA's Known Exploited Vulnerabilities (KEV) catalog. EPSS is FIRST's estimated probability of exploitation activity in the next 30 days, refreshed weekly. Always follow the vendor's official guidance.
About this page
A Citrix NetScaler ADC and Gateway vulnerability added to CISA's Known Exploited Vulnerabilities catalog on 2025-06-30.