Vulnerabilities Microsoft Exchange Server vulnerability CVE-2026-42897 under active exploitation May 17, 2026 Cross-site scripting flaw in on-premise Exchange servers enables spoofing attacks via crafted emails. Read More
Government Advisory CISA Adds Microsoft Exchange XSS Vulnerability to KEV Catalog May 16, 2026 CVE-2026-42897 joins the Known Exploited Vulnerabilities list following evidence of active exploitation in the wild. Read More