Citrix on Wednesday disclosed an actively exploited zero-day vulnerability affecting multiple versions of NetScaler products, an alarming development from a vendor that’s been widely targeted in previous attack sprees. The zero-day (CVE-2025-6543) was disclosed by Citrix nine days after it issued a security bulletin for a pair of defects (CVE-2025-5777 and CVE-2025-5349) in the same…
