CVE-2026-118207
Microsoft Exchange Server Remote Code Execution Vulnerability
Description
Improper input validation in Microsoft Exchange Server allows an authorized attacker to execute code over a network.
INFO
Published Date :
Nov. 10, 2026, 7:19 p.m.
Last Modified :
Nov. 10, 2026, 8:18 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | f38d906d-7342-40ea-92c1-6c4a2c6478c8 | ||||
| CVSS 3.1 | HIGH | [email protected] |
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-118207.
| URL | Resource |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-118207 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-118207 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-118207
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-118207 vulnerability anywhere in the article.
-
CrowdStrike.com
November 2026 Patch Tuesday: 1,252 CVEs Include One Zero-Day and 68 Critical Vulnerabilities
Microsoft addressed 1,252 vulnerabilities in its November 2026 security update release, including one exploited zero-day vulnerability and 68 Critical vulnerabilities. This month's leading risk types ... Read more
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TheCyberThrone
Microsoft Patch Tuesday – November 2026
November 10, 2026 | TheCyberThrone | Vulnerability IntelligenceStudy SecurityMicrosoft’s November Patch Tuesday brings another month of heavy security remediation. But this time, the headline is not ... Read more
-
Dark Reading
November Patch Tuesday: An Overflowing Cornucopia of CVEs
Tara Seals,Senior Managing Editor,Dark ReadingNovember 10, 20265 Min ReadSource: Gurol Tuna via Getty ImagesNovember offers up a veritable Patch Tuesday feast of vulnerabilities that are more likely t ... Read more
The following table lists the changes that have been made to the
CVE-2026-118207 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Nov. 10, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-118207', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-11-10T19:44:32.861804Z'} -
New CVE Received by [email protected]
Nov. 10, 2026
Action Type Old Value New Value Added Description Improper input validation in Microsoft Exchange Server allows an authorized attacker to execute code over a network. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-706 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/118xxx/CVE-2026-118207.json">CVE-2026-118207</a> Added Reference https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-118207