Urgent Security Alert: CISA has officially added a critical vulnerability affecting Citrix NetScaler, Citrix Gateway, and Citrix ADC products to its Known Exploited Vulnerabilities (KEV) catalog. This addition serves as a stark warning, confirming that this specific security flaw is not theoretical but is being actively exploited by malicious actors in real-world attacks.
The presence of this vulnerability in the KEV catalog means that U.S. federal civilian executive branch agencies are now required to address this security risk within a strict timeframe, typically two weeks from the listing date. While this directive applies directly to federal agencies, it underscores the severe threat posed by this flaw to all organizations utilizing the affected Citrix appliances.
Exploitation of such vulnerabilities can lead to significant security breaches, including unauthorized access, data theft, and disruption of critical services. Therefore, the time to act is now. Organizations using Citrix NetScaler, Gateway, or ADC versions impacted by this vulnerability must prioritize applying the necessary security patches or implementing recommended mitigations immediately. Delaying action leaves systems exposed to ongoing and confirmed exploitation. Proactive and swift patching is essential to protect your network infrastructure and sensitive data from compromise. Do not underestimate the risk; this is a confirmed, actively exploited security threat requiring your urgent attention.
Source: https://securityaffairs.com/179476/hacking/u-s-cisa-adds-citrix-netscaler-flaw-to-its-known-exploited-vulnerabilities-catalog.html
