NetScaler ADC and Gateway
CVE-2026-8655: Multiple Memory overflow vulnerabilities leading to unpredictable or erroneous behavior and Denial of Service
Multiple Memory overflow vulnerabilities in NetScaler ADC and NetScaler Gateway leading to unpredictable or erroneous behavior and Denial of Service if NetScaler ADC is configured as an LB of type Oracle OR NetScaler ADC is configured as a DNS Proxy OR NetScaler ADC is configured as a DNS recursive resolver deployment
Published
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| ADC 14.1 | 72.61 or later |
| ADC 13.1 | 63.18 or later |
| ADC 14.1 FIPS | 72.61 or later |
| ADC 13.1 FIPS and NDcPP | 37.272 or later |
| Gateway 14.1 | 72.61 or later |
| Gateway 13.1 | 63.18 or later |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
Multiple Memory overflow vulnerabilities in NetScaler ADC and NetScaler Gateway leading to unpredictable or erroneous behavior and Denial of Service if NetScaler ADC is configured as an LB of type Oracle OR NetScaler ADC is configured as a DNS Proxy OR NetScaler ADC is configured as a DNS recursive resolver deployment
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 11 Oct 2026.