A critical zero-day vulnerability in Citrix ADC and Citrix Gateway appliances is currently under active exploitation by threat actors. This vulnerability, identified as CVE-2023-3519, allows unauthenticated attackers to execute arbitrary code remotely, posing a severe risk to organizations relying on these Citrix products for secure remote access. The flaw affects multiple versions of Citrix ADC and Gateway, making it imperative for affected users to apply patches immediately to mitigate potential breaches. Cybersecurity experts warn that the exploitation of this zero-day could lead to significant data breaches, ransomware deployment, and unauthorized access to sensitive networks. The active attacks highlight the urgency for organizations to prioritize vulnerability management and implement robust monitoring to detect suspicious activities related to this exploit. This incident underscores the ongoing challenges in securing remote access infrastructure amid increasing cyber threats and the critical need for timely patching and threat intelligence sharing within the cybersecurity community.
This Cyber News was published on www.darkreading.com. Publication date: Tue, 26 Aug 2025 20:05:21 +0000