Vulnerabilities have been discovered that are being actively exploited in NetScaler ADC and NetScaler Gateway products, the impact of which can lead to arbitrary code execution and denial of service on those managed by customers that are also exposed to the Internet. It should be noted that the NetScaler ADC and NetScaler Gateway products that are managed by Citrix do not have these flaws. The vulnerabilities identified in their products are CVE-2023-6548 and CVE-2023-6549.