Exploited Vulnerabilities DailyCVE-2023-4966: Citrix NetScaler ADC and NetScaler Gateway
EPSS99.9%No. 35 of 1739 in KEV
CVE year2023listed the same year
Same vendor in KEV27
Same product5
| Field | Value |
|---|---|
| Vendor | Citrix |
| Product | NetScaler ADC and NetScaler Gateway |
| Name | Citrix NetScaler ADC and NetScaler Gateway Buffer Overflow Vulnerability |
| Added to KEV | 2023-10-18 |
| US federal due date | 2023-11-08 |
| Ransomware use | Known |
| CWE | CWE-119 |
CISA description
Citrix NetScaler ADC and NetScaler Gateway contain a buffer overflow vulnerability that allows for sensitive information disclosure when configured as a 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-2026-8452 | Citrix NetScaler ADC and NetScaler Gateway | 2026-08-26 | 1.0% | Unknown |
| CVE-2023-6549 | Citrix NetScaler ADC and NetScaler Gateway | 2024-01-17 | 57.6% | Unknown |
| CVE-2023-6548 | Citrix NetScaler ADC and NetScaler Gateway | 2024-01-17 | 3.1% | Unknown |
| CVE-2023-3519 | Citrix NetScaler ADC and NetScaler Gateway | 2023-07-19 | 99.7% | 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 NetScaler Gateway vulnerability added to CISA's Known Exploited Vulnerabilities catalog on 2023-10-18.