Uncovered Vulnerabilities in Netscaler ADC and Netscaler Gateway by Citrix
Critical Vulnerabilities Discovered in Citrix NetScaler Products
Citrix has issued a Security Advisory to address two critical vulnerabilities, CVE-2025-5349 and CVE-2025-5777, found in its NetScaler ADC and NetScaler Gateway products. These vulnerabilities pose a significant threat and affect various industries and sectors across Australia.
The first vulnerability, CVE-2025-5349, is an improper access control issue on the NetScaler Management Interface. This vulnerability could potentially allow unauthorised access to sensitive data.
The second vulnerability, CVE-2025-5777, involves insufficient input validation in NetScaler products (Gateway or AAA virtual server). This could lead to a memory overread, potentially exposing sensitive data.
Citrix recommends that businesses and government organisations review their networks for vulnerable instances of the NetScaler ADC and NetScaler Gateway products and consult Citrix's customer advisory and the Citrix Security Advisory for mitigation advice.
It is important to note that NetScaler ADC and NetScaler Gateway versions 12.1 and 13.0 are now end of life and not receiving patches. Therefore, it is crucial for organisations to update their products to the latest versions to address these vulnerabilities.
The Australian Signals Directorate's ACSC also recommends organisations update affected products to the latest versions to ensure network security.
The affected versions of NetScaler ADC and NetScaler Gateway include those that are currently in use. However, the specific version numbers advised by Australian organisations are not explicitly stated in the available search results.
For more information, you can refer to the advisory provided by Citrix here. The advisory includes detailed information about the vulnerabilities, their potential impact, and the recommended steps for mitigation.
This alert is not limited to specific industries or sectors and is intended for all businesses and government organisations in Australia. It is crucial that all organisations take the necessary steps to secure their networks and protect sensitive data from potential threats.
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