Citrix Releases Emergency Patches for Actively Exploited CVE-2025-6543 in NetScaler ADC

Citrix has released security updates to address a critical flaw affecting NetScaler ADC that it said has been exploited in the wild.
The vulnerability, tracked as CVE-2025-6543, carries a CVSS score of 9.2 out of a maximum of 10.0.
It has been described as a case of memory overflow that could result in unintended control flow and denial-of-service. However, successful exploitation requires the