Citrix 2025 CVE-2025-5777 Memory Overread Vulnerability
In June 2025, Citrix disclosed a critical vulnerability (CVE-2025-5777) in NetScaler ADC and NetScaler Gateway, characterized by insufficient input validation leading to memory overread. This flaw allows unauthenticated attackers to extract sensitive information, including session tokens, from the memory of affected devices. Exploitation of this vulnerability can result in unauthorized access to systems and potential data breaches. Citrix released patches to address this issue and strongly urged customers to update their appliances promptly. ([support.citrix.com](https://support.citrix.com/external/article/CTX693420/netscaler-adc-and-netscaler-gateway-secu.html?utm_source=openai)) The urgency of addressing CVE-2025-5777 is underscored by active exploitation in the wild, with attackers leveraging this vulnerability to bypass authentication mechanisms. Organizations using affected Citrix products must prioritize patching to mitigate the risk of unauthorized access and data exfiltration. ([darkreading.com](https://www.darkreading.com/vulnerabilities-threats/citrix-patches-vulns-netscaler-adc-gateway?utm_source=openai))
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