Answer in brief
CVE-2026-120866 records a High severity (CVSS 7.7) vulnerability in Memory overflow / improper handling in BGP dynamic routing can lead to unpredictable or erroneous behavior or Denial of Service in Citrix NetScaler ADC and Citrix NetScaler Gateway. The current sources do not mark it as known exploited. The current feed maps Citrix/NetScaler ADC (generic), Citrix/NetScaler Gateway (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Citrix/NetScaler ADC (generic), Citrix/NetScaler Gateway (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Citrix/NetScaler ADCgeneric | >=0 <14.1-73.57 || >=0 <13.1-64.39 || >=0 <14.1-73.58 FIPS || >=0 <13.1-37.293 FIPs and NDcPP | 14.1-73.57, 13.1-64.39, 14.1-73.58 FIPS, 13.1-37.293 FIPs and NDcPP, 14.1-73.58, 13.1-37.293 |
| Citrix/NetScaler Gatewaygeneric | >=0 <14.1-73.57 || >=0 <13.1-64.39 | 14.1-73.57, 13.1-64.39 |
Published upstream
Nov 13, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 13, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 13, 2026
Memory overflow / improper handling in BGP dynamic routing can lead to unpredictable or erroneous behavior or Denial of Service in Citrix NetScaler ADC and Citrix NetScaler Gateway.
Quoted source text, attributed separately from HOL analysis.