8.8Alta KEV

CVE-2026-8452Memory overflow vulnerability leading to unpredictable or erroneous behavior and Denial of Service

NetScaler ADC; NetScaler Gateway Publicada: (hace 4 meses)

Explotación conocida — Citrix NetScaler ADC and NetScaler Gateway Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability

CISA confirmó el 26.08.2026 que esta vulnerabilidad se usa en ataques reales. Plazo para las agencias federales de EE. UU.: 29.08.2026.

Acción requerida: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696604 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-8452

Descripción

Memory overflow vulnerability NetScaler ADC and NetScaler Gateway leading to unpredictable or erroneous behavior and Denial of Service if the appliance is configured as a Gateway (SSL VPN, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server

Debilidad (CWE): CWE-119

Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.

Productos y versiones afectados

FabricanteProductoVersiones
citrix netscaler application delivery controller < 13.1-37.272
citrix netscaler gateway 13.1 – < 13.1-63.18
NetScaler ADC 14.1 – < 72.61, 13.1 – < 63.18, 14.1 FIPS – < 72.61, 13.1 FIPS and NDcPP – < 37.272
NetScaler Gateway 14.1 – < 72.61, 13.1 – < 63.18

Referencias y parches

Coincidencias CPE (NVD) (7)

  • cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:* < 13.1-37.272
  • cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:* < 13.1-37.272
  • cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:* ≥ 13.1 < 13.1-63.18
  • cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:* ≥ 14.1 < 14.1-72.61
  • cpe:2.3:a:citrix:netscaler_application_delivery_controller:14.1-66.68:*:*:*:fips:*:*:*
  • cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:* ≥ 13.1 < 13.1-63.18
  • cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:* ≥ 14.1 < 14.1-72.61