Vulnerabilities

Citrix Hit by Another Zero-Day Attack as Hackers Exploit Critical NetScaler Flaw

Citrix faces a new security crisis as attackers exploit a critical zero-day flaw, CVE-2025-7775, affecting NetScaler ADC and Gateway.

By Content Team

Aug 27, 2025

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Citrix is dealing with another security crisis as attackers actively exploit a zero-day vulnerability in its NetScaler products. The critical flaw, CVE-2025-7775, scores 9.2 out of 10 on the severity scale and allows remote attackers to hijack systems or crash them without needing credentials.

The vulnerability affects NetScaler ADC and Gateway devices used by organizations for secure remote access. Two additional flaws were also disclosed, bringing the total to three new security holes. What's particularly concerning is that nearly 20% of NetScaler devices run on unsupported, end-of-life versions that can't be patched.

This marks yet another blow for Citrix, whose NetScaler products have become a favorite target for cybercriminals. The US government currently lists 10 NetScaler vulnerabilities in its catalog of actively exploited flaws, with six discovered in just the past two years.

Source: Dark Reading

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