CASCACascade Atlas

Evidence dossier

CVE-2025-5777

NetScaler ADC and NetScaler Gateway - Insufficient input validation leading to memory overread

78.7–98.2Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

Insufficient 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

State
PUBLISHED
Published
Jun 17, 2025
Updated
Feb 26, 2026
Evidence coverage
72%
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 EPSS99.87%

2026-07-18 · v2026.06.15 · percentile 100.0%

Source stateConflict visible

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

NetScaler ADC and NetScaler Gateway - Insufficient input validation leading to memory overread

CVEderivative copy
container

CVE Program Container

CISA KEVoriginal assertion
observed_exploitation

Citrix NetScaler ADC and Gateway Out-of-Bounds Read Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.998700000000; percentile 0.999620000000

Applicability

Cited product scope

Trace impact →
NetScalerADC
[{"status": "affected", "version": "14.1", "lessThan": "43.56", "versionType": "patch"}, {"status": "affected", "version": "13.1", "lessThan": "58.32", "versionType": "patch"}]unknown
NetScalerGateway
[{"status": "affected", "version": "14.1", "lessThan": "43.56", "versionType": "patch"}, {"status": "affected", "version": "13.1", "lessThan": "58.32", "versionType": "patch"}]unknown
Unknown vendorUnknown product
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*; start including 13.1; end excluding 13.1-58.32supported
Unknown vendorUnknown product
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*; start including 14.1; end excluding 14.1-43.56supported
Unknown vendorUnknown product
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*; start including 12.1; end excluding 12.1-55.328supported
Unknown vendorUnknown product
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*; start including 13.1; end excluding 13.1-37.235supported
Unknown vendorUnknown product
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:*; start including 13.1; end excluding 13.1-37.235supported
Unknown vendorUnknown product
cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*; start including 13.1; end excluding 13.1-58.32supported
Unknown vendorUnknown product
cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*; start including 14.1; end excluding 14.1-43.56supported

Assessments

CVSS by origin

7.5
nvd@nist.govCVSS 3.1 · role PrimaryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
9.3
secure@citrix.comCVSS 4.0 · role SecondaryCVSS:4.0/AV:N/AC:L/AT:N/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
9.3
CitrixCVSS 4.0 · role unknownCVSS:4.0/AV:N/AC:L/AT:N/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.