Frequently asked questions about reported Citrix NetScaler zero-day vulnerabilities
There are reportedly two unpatched zero-day Citrix NetScaler vulnerabilities capable of enabling remote code execution that have been actively exploited in the wild, with no patches available at this time.Key takeawaysReports indicate that there are two critical zero-day vulnerabilities in Citrix NetScaler.The reports originate from a pre-notification sent out ahead of public disclosure, so there are currently no specific details about these flaws and no patches available.This post will be…
KEV ✓ EPSS 0.58 CVE-2023-6549 CVE-2025-6543 CVE-2026-19489 CVE-2026-19490 Citrix US