Critical RCE Vulnerability in Citrix NetScaler ADC/Gateway (CVE‑2026‑107406)
Citrix disclosed CVE‑2026‑107406, a memory‑overflow bug in NetScaler ADC and Gateway that can enable remote code execution or denial‑of‑service under certain configurations. The flaw underscores the importance of continuous vulnerability management and auditable patch evidence for compliance readiness.
ADTP Breach Watch· October 9, 2026· The Hacker News
Citrix announced CVE‑2026‑107406, a memory‑overflow vulnerability in NetScaler ADC and NetScaler Gateway that may allow remote code execution or denial‑of‑service when specific configuration settings are present. The vendor issued patches to remediate the issue.
Why it matters for trust and compliance
The incident tests the control objective of secure configuration and vulnerability management, a requirement across NIST CSF, ISO 27001, and PCI DSS, highlighting the need for continuous evidence of remediation.
Provides a concrete data point for continuous control monitoring of patch compliance.
Enables organizations to capture defensible audit evidence of remediation across frameworks.
Who is affected
CLOUD_INFRA
Recommended actions
Apply the Citrix NetScaler patches immediately.
Validate configurations against the advisory recommendations.
Run an authenticated scan to confirm remediation and archive the results.
Details
CVEs
CVE-2026-107406
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