Multiple Flaws in Citrix NetScaler ADC and Gateway Pose Immediate Threat

Recent Citrix NetScaler vulnerabilities, including CVE‑2025‑6543 (memory overflow) and CVE‑2025‑5777 (CitrixBleed 2), pose critical risks like DoS, session hijacking, and MFA bypass. CVE-2025-6543 is already being exploited in the wild, while CVE‑2025‑5777 is expected to be weaponized soon. Affected versions include NetScaler ADC/Gateway prior to 14.1‑47.46 and 13.1‑59.19, as well as all EOL versions, including 12.1 and 13.0. Urgent patching and post-update session termination are strongly recommended.