Citrix is urging customers to patch another critical NetScaler vulnerability after weeks of disclosures involving actively exploited flaws.
CVE-2026-107406 affects NetScaler ADC and NetScaler Gateway and can lead to remote code execution (RCE) or denial of service (DoS). It carries a CVSS v4.0 score of 9.5.
The affected configurations depend on the software version. Older builds are vulnerable when configured as a SAML (Security Assertion Markup Language) service provider (SP) or identity provider (IdP); some more recent builds are affected only in the identity provider configuration.
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Source: The Register
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