CVE-2026-118207

CVE Enrichment

CVSS: 8.8 HIGH
CISA KEV: Not listed

Description

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

Technical Details

CVSS Version: 3.1
CNA / NVD Source: [email protected]
Published: 11-Nov-2026 02:19
Last Modified: 11-Nov-2026 03:18
CWE: CWE-706

CVSS Vector


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

CNA Products / Version Status

Microsoft · Microsoft Exchange Server Subscription Edition RTM Source: CNA · [email protected]
Default status: unknown

15.02.0.0 ≤ version < 15.02.2562.057 — affected (custom)

Platforms: x64-based Systems

References

[email protected]

Last enrichment sync: 11-Nov-2026 07:10
Sources: NVD · FIRST EPSS · CISA KEV
Latest successful provider update; providers refresh independently.

Reported Context (1)

The first, in Exchange Server (CVE-2026-118207, CVSS 8.8), "belongs in this week's emergency window for every Exchange Server Subscription Edition server you run," Automox researchers warned in their monthly Patch Microsoft’s November Patch Tuesday Addresses 1,093 Vulnerabilities, Including an Actively Exploited Zero-Day

CVE (5)

People (4)

Vendors (1)

Products (6)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.