CVE-2026-88779: NetScaler (Citrix)
Vulnerabilità già sfruttata in attacchi reali, punteggio 7,5 su 10, in NetScaler (Citrix). Sfruttabile da remoto, via rete, senza credenziali, senza che nessuno faccia nulla. Tipo: scrittura o lettura fuori dai limiti della memoria.
- Gravità
- 7,5 su 10 (high)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Sfruttamento
- Sfruttata in attacchi reali (catalogo CISA KEV).
- Scadenza CISA
- Le agenzie federali USA devono correggerla entro il 7 ottobre 2026: un buon riferimento anche per voi.
- Tipo di difetto
- CWE-119: scrittura o lettura fuori dai limiti della memoria
- Pubblicata
- 4 ottobre 2026
Descrizione originale
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.
Required action: 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.
Fonti
- Scheda NVD
- support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697174
- community.citrix.com/techzone-blogs/110_security-updates/understanding-and-addressing-cve-2026-88779-in-citrix-netscaler-adc-and-citrix-netscaler-gateway/
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-88779