Issabel PBX Vulnerability CVE-2026-89026 Exploited in the Wild Vulnerability Report Issabel PBX Vulnerability CVE-2026-89026 Exploited in the Wild Do Son September 16, 2026 0 TL;DR The Shadowserver Foundation detected active in-the-wild exploitation of an Issabel PBX vulnerability on September 9, 2026.... Read More Read more about Issabel PBX Vulnerability CVE-2026-89026 Exploited in the Wild