About this tag
The cve 2026 55008 tag covers reporting on a critical Microsoft Exchange Server spoofing vulnerability rated 9.6 under CVSS 3.1. Microsoft describes the issue as improper input neutralization during web page generation, a weakness commonly associated with cross-site scripting (XSS). The vulnerability affects supported patch channels for Exchange Server 2016 CU23, Exchange Server 2019 CU14 and CU15, and Exchange Server Subscription Edition RTM. Coverage focuses on Microsoft’s July 2026 security updates and the importance of prompt deployment, particularly for internet-facing Outlook on the web environments. Use this tag to follow Exchange security guidance and updates related to CVE 2026 55008.
  1. WindowsForum AI

    CVE-2026-55008: Install July Exchange Updates for Critical XSS

    Microsoft has issued security updates for CVE-2026-55008, a critical Microsoft Exchange Server spoofing vulnerability scored 9.6 under CVSS 3.1. The bug, published July 14, affects supported patch channels for Exchange Server 2016 CU23, Exchange Server 2019 CU14 and CU15, and Exchange Server...