CVE-2026-13474

CVE Enrichment

CVSS: 8.7 HIGH
EPSS: 0.56%
EPSS Percentile: 46.31%
CISA KEV: Not listed

Description

Denial of service via malformed HTTP/2 requests in NetScaler ADC and NetScaler Gateway if HTTP/2 is enabled in HTTP Profile and associated with the virtual server (of type LB, CS, VPN) or the service configured on NetScaler

Technical Details

CVSS Version: 4.0
CNA / NVD Source: 50a63c94-1ea7-4568-8c11-eb79e7c5a2b5
Published: 30-Jun-2026 20:17
Last Modified: 02-Jul-2026 23:55
EPSS Date: 2026-10-29
CWE: CWE-401

CVSS Vector


            CVSS:4.0                            AV:N /
                            AC:L /
                            AT:N /
                            PR:N /
                            UI:N /
                            VC:N /
                            VI:N /
                            VA:H /
                            SC:N /
                            SI:N /
                            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

Affected Products / Versions

citrix / netscaler_application_delivery_controller
Version / affected range: * · before (exclusive) 13.1-37.272
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*
citrix / netscaler_application_delivery_controller
Version / affected range: * · before (exclusive) 13.1-37.272
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:*
citrix / netscaler_application_delivery_controller
Version / affected range: * · from (inclusive) 13.1 · before (exclusive) 13.1-63.18
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*
citrix / netscaler_application_delivery_controller
Version / affected range: * · from (inclusive) 14.1 · before (exclusive) 14.1-72.61
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*
citrix / netscaler_application_delivery_controller
Version / affected range: 14.1-66.68
cpe:2.3:a:citrix:netscaler_application_delivery_controller:14.1-66.68:*:*:*:fips:*:*:*
citrix / netscaler_gateway
Version / affected range: * · from (inclusive) 13.1 · before (exclusive) 13.1-63.18
cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*
citrix / netscaler_gateway
Version / affected range: * · from (inclusive) 14.1 · before (exclusive) 14.1-72.61
cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*

References

50a63c94-1ea7-4568-8c11-eb79e7c5a2b5

Last enrichment sync: 30-Oct-2026 03:01
Sources: NVD · FIRST EPSS · CISA KEV
Latest successful provider update; providers refresh independently.

Reported Context (1)

Citrix assigned it a separate NetScaler-specific CVE identifier, CVE-2026-13474. Citrix Patches NetScaler Flaws, Including HTTP/2 Bomb Vulnerability

CVE (5)

Vendors (1)

Products (5)

Tools (1)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.