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Researchers say attackers are already looting vulnerable boxes In-the-wild exploitation of a critical Citrix NetScaler bug has begun less than a week after disclosure, with researchers warning that attackers are already poking and pillaging vulnerable boxes.…
The Netherlands' National Cyber Security Centre (NCSC) is warning that a critical Citrix NetScaler vulnerability tracked as CVE-2025-6543 was exploited to breach "critical organizations" in the country. [...]
Researchers have released proof-of-concept (PoC) exploits for a critical Citrix NetScaler vulnerability, tracked as CVE-2025-5777 and dubbed CitrixBleed2, warning that the flaw is easily exploitable and can successfully steal user session tokens. [...]
Citrix warns that patching recently disclosed vulnerabilities that can be exploited to bypass authentication and launch denial-of-service attacks may also break login pages on NetScaler ADC and Gateway appliances. [...]
Citrix is warning that a vulnerability in NetScaler appliances tracked as CVE-2025-6543 is being actively exploited in the wild, causing devices to enter a denial of service condition. [...]
Citrix notified customers this week to manually mitigate a PuTTY SSH client vulnerability that could allow attackers to steal a XenCenter admin's private SSH key. [...]
Citrix is warning of two zero-day security vulnerabilities in NetScaler ADC (formerly Citrix ADC) and NetScaler Gateway (formerly Citrix Gateway) that are being actively exploited in the wild
Citrix urged customers on Tuesday to immediately patch Netscaler ADC and Gateway appliances exposed online against two actively exploited zero-day vulnerabilities. [...]
Citrix reminded admins today that they must take additional measures after patching their NetScaler appliances against the CVE-2023-4966 'Citrix Bleed' vulnerability to secure vulnerable devices against attacks. [...]
Citrix warned admins today to secure all NetScaler ADC and Gateway appliances immediately against ongoing attacks exploiting the CVE-2023-4966 vulnerability. [...]
Citrix is warning of exploitation of a recently disclosed critical security flaw in NetScaler ADC and Gateway appliances that could result in exposure of sensitive information
Citrix ADM vulnerabilities could lead to admin password reset and disruption of ADM license service, company warns.
Citrix warned customers to deploy security updates that address a critical Citrix Application Delivery Management (ADM) vulnerability that can let attackers reset admin passwords. [...]