Answer in brief
CVE-2025-5777 records a High severity (CVSS 7.5) vulnerability in NetScaler ADC and NetScaler Gateway - 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.
Answer in brief
CVE-2025-5777 records a High severity (CVSS 7.5) vulnerability in NetScaler ADC and NetScaler Gateway - 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.
CVSS is 7.5. 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.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:* | Not reported | Not reported |
| cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:* | Not reported | Not reported |
| cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:* | Not reported | Not reported |
| cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| NetScaler/ADCgeneric | >=14.1 <43.56 || >=13.1 <58.32 | 43.56, 58.32 |
| NetScaler/Gatewaygeneric | >=14.1 <43.56 || >=13.1 <58.32 | 43.56, 58.32 |
Published upstream
Jun 17, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
May 24, 2026
Added to CISA KEV
Jul 10, 2025
Evidence: source:kev:kev:kev:recordInsufficient input validation leading to memory overread when the NetScaler is configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) OR AAA virtual server
Quoted source text, attributed separately from HOL analysis.
CVSS is 7.5. 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.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:* | Not reported | Not reported |
| cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:* | Not reported | Not reported |
| cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:* | Not reported | Not reported |
| cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| NetScaler/ADCgeneric | >=14.1 <43.56 || >=13.1 <58.32 | 43.56, 58.32 |
| NetScaler/Gatewaygeneric | >=14.1 <43.56 || >=13.1 <58.32 | 43.56, 58.32 |
Published upstream
Jun 17, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
May 24, 2026
Added to CISA KEV
Jul 10, 2025
Evidence: source:kev:kev:kev:recordInsufficient input validation leading to memory overread when the NetScaler is configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) OR AAA virtual server
Quoted source text, attributed separately from HOL analysis.