CASCACascade Atlas

Evidence dossier

CVE-2025-7775

Memory overflow vulnerability leading to Remote Code Execution and/or Denial of Service

71.7–88.2Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

Memory overflow vulnerability leading to Remote Code Execution and/or Denial of Service in NetScaler ADC and NetScaler Gateway when NetScaler is configured as Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server (OR) NetScaler ADC and NetScaler Gateway 13.1, 14.1, 13.1-FIPS and NDcPP: LB virtual servers of type (HTTP, SSL or HTTP_QUIC) bound with IPv6 services or servicegroups bound with IPv6 servers (OR) NetScaler ADC and NetScaler Gateway 13.1, 14.1, 13.1-FIPS and NDcPP: LB virtual servers of type (HTTP, SSL or HTTP_QUIC) bound with DBS IPv6 services or servicegroups bound with IPv6 DBS servers (OR) CR virtual server with type HDX

State
PUBLISHED
Published
Aug 26, 2025
Updated
Feb 26, 2026
Evidence coverage
85%
CISA KEVCatalog member

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

FIRST EPSS18.97%

2026-07-18 · v2026.06.15 · percentile 97.0%

Source stateNo scored conflict

Distinct CVSS assessments remain side by side; none are averaged.

Source comparison

Who said what

CISA-ADPindependent enrichment
container

CISA ADP Vulnrichment

Citrixoriginal assertion
container

Memory overflow vulnerability leading to Remote Code Execution and/or Denial of Service

CISA KEVoriginal assertion
observed_exploitation

Citrix NetScaler Memory Overflow Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.189730000000; percentile 0.969850000000

Applicability

Cited product scope

Trace impact →
NetScalerADC
[{"status": "affected", "version": "14.1", "lessThan": "47.48", "versionType": "patch"}, {"status": "affected", "version": "13.1", "lessThan": "59.22", "versionType": "patch"}, {"status": "affected", "version": "13.1 FIPS and NDcPP", "lessThan": "37.241", "versionType": "patch"}, {"status": "affected", "version": "12.1 FIPS and NDcPP", "lessThan": "55.330", "versionType": "patch"}]unknown
NetScalerGateway
[{"status": "affected", "version": "14.1", "lessThan": "47.48", "versionType": "patch"}, {"status": "affected", "version": "13.1", "lessThan": "59.22", "versionType": "patch"}, {"status": "affected", "version": "13.1 FIPS and NDcPP", "lessThan": "37.241", "versionType": "patch"}, {"status": "affected", "version": "12.1 FIPS and NDcPP", "lessThan": "55.330", "versionType": "patch"}]unknown
Unknown vendorUnknown product
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*; start including 13.1; end excluding 13.1-59.22supported
Unknown vendorUnknown product
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*; start including 14.1; end excluding 14.1-47.48supported
Unknown vendorUnknown product
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*; start including 12.1; end excluding 12.1-55.330supported
Unknown vendorUnknown product
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*; start including 13.1; end excluding 13.1-37.241supported
Unknown vendorUnknown product
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:*; start including 12.1; end excluding 12.1-55.330supported
Unknown vendorUnknown product
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:*; start including 13.1; end excluding 13.1-37.241supported
Unknown vendorUnknown product
cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*; start including 13.1; end excluding 13.1-59.22supported
Unknown vendorUnknown product
cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*; start including 14.1; end excluding 14.1-47.48supported

Assessments

CVSS by origin

9.8
nvd@nist.govCVSS 3.1 · role PrimaryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.2
secure@citrix.comCVSS 4.0 · role SecondaryCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
9.2
CitrixCVSS 4.0 · role unknownCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L

Limitations and unknowns

  • KEV membership is authoritative for the catalog, not proof of exposure in any environment.
  • EPSS is a dated model probability and not an individual-environment prediction.
  • Affected or fixed status applies only to the exact cited product and version scope; unresolved scope remains unknown.
  • NVD-carried upstream facts remain derivative and are not independent corroboration.
  • Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
  • NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
  • Factor D is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.