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Threat Brief: NetScaler Zero Days CVE-2026-88771 and CVE-2026-88772 Exploited in the Wild (Updated September 30)

CVE-2026-88771CVE-2026-88772

September 30, 2026 · Unit 42 · Severity: CRITICAL

Unit 42 is aware of possible 0-day activity against NetScaler devices. Citrix reports CVE-2026-88771, CVE-2026-88772 have been exploited in the wild. The post Threat Brief: NetScaler Zero Days CVE-2026-88771 and CVE-2026-88772 Exploited in the Wild (Updated September 30) appeared first on Unit 42. 📌 **Analyst Note:** This vulnerability is confirmed actively exploited in the wild. Organizations should treat this as an emergency patching priority.

Key Takeaways

  • Security vulnerabilities (CVE-2026-88771, CVE-2026-88772) require prompt patching and assessment.
  • According to Unit 42, this development warrants attention from teams monitoring the evolving threat landscape.
  • Given the CRITICAL severity, organizations should prioritize remediation in their vulnerability management workflow.
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