CVE-2026-8655
A remote, anonymous attacker can exploit multiple vulnerabilities in Citrix Systems NetScaler ADC and Gateway to disclose information, cause a denial-of-service condition, or trigger other unspecified impacts.
CSIRTS triage
- What
- Multiple vulnerabilities allow a remote, anonymous attacker to disclose information, cause a denial-of-service condition, or trigger other unspecified impacts.
- Who is affected
- Users of Citrix Systems NetScaler ADC and Gateway are affected.
- Urgency
- Remediation is high urgency due to the potential for exploitation and high severity.
- Action
- Apply the latest patches for Citrix Systems NetScaler ADC and Gateway.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.49% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 40% of all EPSS-scored CVEs.
Advisory coverage (8)
- unknownNCSC-2026-0216 [1.01] [M/H] Vulnerabilities Fixed in Citrix Netscaler ADC and Netscaler Gatewayncsc-nl · 2026-08-18
- criticalCitrix security advisory (AV26-645) – Update 2cccs · 2026-08-17
- unknownCitrix Products Multiple Vulnerabilitieshkcert · 2026-07-03
- unknownAL26-016 - Vulnerability impacting Citrix NetScaler CVE-2026-8451cccs · 2026-07-02
- high[UPDATE] [high] Citrix Systems NetScaler ADC and Gateway: Multiple vulnerabilitiescert-bund · 2026-07-02
- unknownMultiple vulnerabilities in Citrix products (July 1, 2026)cert-fr-avis · 2026-07-01
- unknownNCSC-2026-0216 [1.00] [M/H] Vulnerabilities fixed in Citrix Netscaler ADC and Netscaler Gatewayncsc-nl · 2026-06-30
- criticalCVE-2026-8655: Multiple Memory overflow vulnerabilities in NetScaler ADC and NetScaler Gateway leading to unpr…nvd · 2026-06-30
External references
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