CVE-2026-42897: Microsoft confirms active exploitation of Exchange Server zero-day
Microsoft warned that attackers are exploiting a new Exchange Server zero-day vulnerability, tracked as CVE-2026-42897, in the wild. Microsoft warned that threat actors are actively exploiting a new Exchange Server zero-day vulnerability tracked as CVE-2026-42897 (CVSS score 8.1). The vulnerability is an improper neutralization of input during web page generation (‘cross-site scripting’) in Microsoft Exchange […]
Microsoft warned that threat actors are actively exploiting a new Exchange Server zero-day vulnerability tracked as CVE-2026-42897 (CVSS score 8.1).
The vulnerability is an improper neutralization of input during web page generation (‘cross-site scripting’) in Microsoft Exchange Server. An attacker can exploit the flaw to perform spoofing over a network.
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