CVE-2026-69356

CRITICALCVSS 9.3

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.

Timeline

Published:September 8th, 2026 6:18 PM

Last modified:September 8th, 2026 7:22 PM

CVSS Scoring

CVSS v3: 9.3 (CRITICAL)

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

Weaknesses (CWE)

CWE-79

References & Reports

Advisories, patches, and third-party reports

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69356

Source: NIST NVD · Data may lag official sources by up to one minute