CVE-2026-55008

CriticalCVSS 9.6/10Last modified Jul 24, 2026

Description

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.

Metrics

CVSS 3.1 9.6/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Jul 14, 2026
Last modified
Jul 24, 2026
NVD status
Analyzed

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CVE-2026-55008: Critical severity, CVSS 9.6 | Vulnix