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High severity8.8NVD Advisory· Published Nov 10, 2026· Updated Nov 10, 2026

CVE-2026-118207

CVE-2026-118207

Description

Improper input validation in Microsoft Exchange Server allows an authorized attacker to execute code over a network.

Affected products

1

Microsoft/Exchange Serverllm-fuzzy

Patches

Vulnerability mechanics

References

1

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-118207nvd

News mentions

2

Microsoft November 2026 Patch Tuesday Fixes 1,093 Vulnerabilities, Including Outlook Zero-Day
Cyber Security News · Nov 10, 2026
Microsoft’s November 2026 Patch Tuesday addresses 1093 CVEs (CVE-2026-124194)
Tenable Blog · Nov 10, 2026