Answer in brief
CVE-2026-3055 records a High severity vulnerability in Insufficient input validation leading to memory overread. The current sources mark it as known exploited. The current feed maps NetScaler/ADC (generic), 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.
A CVSS score is not reported in the current record. Known-exploitation status makes exposure review time-sensitive. 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 NetScaler/ADC (generic), NetScaler/Gateway (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| NetScaler/ADCgeneric | >=14.1 <66.59 || >=13.1 <62.23 || >=13.1 FIPS and NDcPP <37.262 | 66.59, 62.23, 37.262 |
| NetScaler/Gatewaygeneric | >=14.1 <66.59 || >=13.1 <62.23 | 66.59, 62.23 |
Published upstream
Mar 23, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Apr 2, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
May 24, 2026
Added to CISA KEV
Mar 30, 2026
Evidence: source:kev:kev:kev:recordInsufficient input validation in NetScaler ADC and NetScaler Gateway when configured as a SAML IDP leading to memory overread
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-3055 records a High severity vulnerability in Insufficient input validation leading to memory overread. The current sources mark it as known exploited. The current feed maps NetScaler/ADC (generic), 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.
A CVSS score is not reported in the current record. Known-exploitation status makes exposure review time-sensitive. 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 NetScaler/ADC (generic), NetScaler/Gateway (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| NetScaler/ADCgeneric | >=14.1 <66.59 || >=13.1 <62.23 || >=13.1 FIPS and NDcPP <37.262 | 66.59, 62.23, 37.262 |
| NetScaler/Gatewaygeneric | >=14.1 <66.59 || >=13.1 <62.23 | 66.59, 62.23 |
Published upstream
Mar 23, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Apr 2, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
May 24, 2026
Added to CISA KEV
Mar 30, 2026
Evidence: source:kev:kev:kev:recordInsufficient input validation in NetScaler ADC and NetScaler Gateway when configured as a SAML IDP leading to memory overread
Quoted source text, attributed separately from HOL analysis.