CVE-2026-8655

CVE Enrichment

CVSS: 8.8 HIGH
EPSS: 0.63%
EPSS Percentile: 50.15%
CISA KEV: Not listed

Description

Multiple Memory overflow vulnerabilities in NetScaler ADC and NetScaler Gateway leading to unpredictable or erroneous behavior and Denial of Service if NetScaler ADC is configured as an LB of type Oracle OR NetScaler ADC is configured as a DNS Proxy OR NetScaler ADC is configured as a DNS recursive resolver deployment

Technical Details

CVSS Version: 4.0
CNA / NVD Source: 50a63c94-1ea7-4568-8c11-eb79e7c5a2b5
Published: 30-Jun-2026 20:19
Last Modified: 01-Jul-2026 22:52
EPSS Date: 2026-10-29
CWE: CWE-119

CVSS Vector


            CVSS:4.0                            AV:N /
                            AC:L /
                            AT:N /
                            PR:N /
                            UI:N /
                            VC:L /
                            VI:L /
                            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 02:55
Sources: NVD · FIRST EPSS · CISA KEV
Latest successful provider update; providers refresh independently.

Reported Context (1)

Four of the issues, tracked as CVE-2026-8451, CVE-2026-8452, CVE-2026-8655, and CVE-2026-10816, are high-severity out-of-bounds read, memory overflow, and arbitrary file read bugs. 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.