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Microsoft Exchange Server vulnerability CVE-2026-42897 under active exploitation
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.
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CISA Adds Microsoft Exchange XSS Vulnerability to KEV Catalog
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.
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Chinese Group Targets Azerbaijani Energy Firm via Exchange Flaws
Vulnerabilities

Chinese Group Targets Azerbaijani Energy Firm via Exchange Flaws

May 14, 2026
FamousSparrow group conducted multi-wave attacks against oil and gas company over two-month period.
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