Tag: cve-2026-21262

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CVE-2026-19490: Critical Citrix NetScaler Authentication Bypass Exposes Enterprise Gateways

Cloud Software Group has released security updates for a critical authentication bypass vulnerability affecting NetScaler ADC and NetScaler Gateway appliances. Tracked as CVE-2026-19490 and rated 9.3 on the CVSS v4.0 scale, the flaw can allow an unauthenticated remote attacker to circumvent authentication controls on vulnerable systems configured as gateways or AAA virtual servers. The Critical […]

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CVE-2026-68820: Actively Exploited Windows AFD.sys Zero-Day Enables SYSTEM Privilege Escalation

Microsoft’s August 2026 Patch Tuesday addresses hundreds of security vulnerabilities, but one issue stands out because attackers were already exploiting it before a fix became available. CVE-2026-68820 is a high-severity elevation-of-privilege vulnerability in the Windows Ancillary Function Driver for WinSock, or AFD.sys, that can allow a local attacker to escalate privileges to SYSTEM. The flaw […]

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