NetScaler ADC / Gateway 12.1 vulnerabilities
4 advisories affect Citrix NetScaler ADC / Gateway 12.1, 4 already exploited by attackers. Latest: August 26, 2025.
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| Vulnerability | Severity | Affected versions |
|---|---|---|
| Citrix NetScaler Memory Overflow Vulnerability CVE-2025-7775 · August 26, 2025 | Critical 9.8 Exploited | from 12.1 to before 12.1-55.330 Fixed in 12.1-55.330 |
| Citrix NetScaler ADC and Gateway Out-of-Bounds Read Vulnerability CVE-2025-5777 · July 10, 2025 | High 7.5 Exploited | 12.1 before 12.1-55.328 Fixed in 12.1-55.328 |
| Citrix NetScaler ADC and NetScaler Gateway Buffer Overflow Vulnerability CVE-2023-6549 · January 17, 2024 | High 8.2 Exploited | 12.1 before 12.1-55.302 Fixed in 12.1-55.302 |
| Citrix NetScaler ADC and NetScaler Gateway Code Injection Vulnerability CVE-2023-6548 · January 17, 2024 | Medium 5.5 Exploited | 12.1 before 12.1-55.302 Fixed in 12.1-55.302 |
Affected versions are compiled automatically from vendor advisories and NVD and may contain errors. Where no fixed version is shown, you will find it in the official advisory linked from every page: check it there before updating.