Citrix Warns of Actively Exploited NetScaler Vulnerability Causing DoS Conditions

Citrix has issued a warning that the vulnerability CVE-2025-6543 in NetScaler devices is being actively exploited, leading to denial of service (DoS) conditions. This security flaw affects NetScaler devices, causing service disruptions. Attacks exploiting this vulnerability have been observed in the wild, impacting users of these devices.