CVE Watch4 oct 2026

CVE-2026-88779

Citrix NetScaler Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability

CVSS

—

Sin CVSS

EPSS

0.3%

p18

KEV

SÍ

4 oct 2026

Exploit Today

0-100

Publicado: 4 oct 2026 · Última mod.: 4 oct 2026 · CWE-119

EPSS · 30d

Sin historial EPSS suficiente todavía.

Ficha del catálogo KEV

Producto

Citrix / NetScaler

Vulnerabilidad

Citrix NetScaler Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability

Añadido a KEV

4 oct 2026

Remediar antes de

7 oct 2026

Uso conocido en ransomware

Descripción resumida

Citrix NetScaler ADC (formerly Citrix ADC) and Citrix NetScaler Gateway (formerly Citrix Gateway) contain an improper restriction of operations within the bounds of a memory buffer vulnerability that could allow for a denial of service.

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.

Notas

https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697174 ; https://community.citrix.com/techzone-blogs/110_security-updates/understanding-and-addressing-cve-2026-88779-in-citrix-netscaler-adc-and-citrix-netscaler-gateway/ ; 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-2026-88779

Descripción técnica

Vulnerability in NetScaler ADC and NetScaler Gateway. This issue affects ADC: before 14.1-73.41, before 13.1-64.28, before 14.1-73.41 FIPS, and before 13.1-37.282; Gateway: before 14.1-73.41 and before 13.1-64.28.

Referencias oficiales

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