CVE-2021-31209— Microsoft Exchange Server Spoofing Vulnerability
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I. Basic Information for CVE-2021-31209
Vulnerability Information
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Vulnerability Title
Microsoft Exchange Server Spoofing Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
Microsoft Exchange Server Spoofing Vulnerability
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Microsoft Exchange Server 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Exchange Server是美国微软（Microsoft）公司的一套电子邮件服务程序。它提供邮件存取、储存、转发，语音邮件，邮件过滤筛选等功能。 Microsoft Exchange Server 存在安全漏洞。以下产品和版本受到影响：Microsoft Exchange Server 2019 Cumulative Update 9,Microsoft Exchange Server 2016 Cumulative Update 20,Microsoft Exchange Ser
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 9 | 15.02.0 ~ 15.02.0858.012 | cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_9:*:*:*:*:*:* | |
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 20 | 15.01.0 ~ 15.01.2242.010 | cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_20:*:*:*:*:*:* | |
| Microsoft | Microsoft Exchange Server 2013 Cumulative Update 23 | 15.00.0 ~ 15.00.1497.018 | cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:* | |
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 19 | 15.01.0 ~ 15.01.2176.014 | cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_19:*:*:*:*:*:* | |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 8 | 15.02.0 ~ 15.02.0792.015 | cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_8:*:*:*:*:*:* |
II. Public POCs for CVE-2021-31209
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://www.zerodayinitiative.com/advisories/ZDI-21-615/x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-31209
Same Patch Batch · Microsoft · 2021-05-11 · 52 CVEs total
| CVE-2021-28476 | 9.9 CRITICAL | Windows Hyper-V Remote Code Execution Vulnerability |
| CVE-2021-31166 | 9.8 CRITICAL | HTTP Protocol Stack Remote Code Execution Vulnerability |
| CVE-2021-27068 | 8.8 HIGH | Visual Studio Remote Code Execution Vulnerability |
| CVE-2021-28455 | 8.8 HIGH | Microsoft Jet Red Database Engine and Access Connectivity Engine Remote Code Execution Vul |
| CVE-2021-31181 | 8.8 HIGH | Microsoft SharePoint Remote Code Execution Vulnerability |
| CVE-2021-28474 | 8.8 HIGH | Microsoft SharePoint Server Remote Code Execution Vulnerability |
| CVE-2021-31194 | 8.8 HIGH | OLE Automation Remote Code Execution Vulnerability |
| CVE-2021-31198 | 7.8 HIGH | Microsoft Exchange Server Remote Code Execution Vulnerability |
| CVE-2021-31188 | 7.8 HIGH | Windows Graphics Component Elevation of Privilege Vulnerability |
| CVE-2021-31211 | 7.8 HIGH | Visual Studio Code Remote Code Execution Vulnerability |
| CVE-2021-31165 | 7.8 HIGH | Windows Container Manager Service Elevation of Privilege Vulnerability |
| CVE-2021-31167 | 7.8 HIGH | Windows Container Manager Service Elevation of Privilege Vulnerability |
| CVE-2021-31180 | 7.8 HIGH | Microsoft Office Graphics Remote Code Execution Vulnerability |
| CVE-2021-31168 | 7.8 HIGH | Windows Container Manager Service Elevation of Privilege Vulnerability |
| CVE-2021-31179 | 7.8 HIGH | Microsoft Office Remote Code Execution Vulnerability |
| CVE-2021-31177 | 7.8 HIGH | Microsoft Office Remote Code Execution Vulnerability |
| CVE-2021-31175 | 7.8 HIGH | Microsoft Office Remote Code Execution Vulnerability |
| CVE-2021-31176 | 7.8 HIGH | Microsoft Office Remote Code Execution Vulnerability |
| CVE-2021-31170 | 7.8 HIGH | Windows Graphics Component Elevation of Privilege Vulnerability |
| CVE-2021-31169 | 7.8 HIGH | Windows Container Manager Service Elevation of Privilege Vulnerability |
Showing top 20 of 52 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Microsoft Exchange Server 2019 Cumulative Update 9
- CVE-2021-33768
Microsoft Exchange Server Elevation of Privilege Vulnerabili - CVE-2021-33766
Microsoft Exchange Server Information Disclosure Vulnerabili - CVE-2021-31206
Microsoft Exchange Server Remote Code Execution Vulnerabilit - CVE-2021-31196
Microsoft Exchange Server Remote Code Execution Vulnerabilit - CVE-2021-31198
Microsoft Exchange Server Remote Code Execution Vulnerabilit
Same vendor: Microsoft
- CVE-2026-42826
Azure DevOps Information Disclosure Vulnerability - CVE-2026-35428
Azure Cloud Shell Spoofing Vulnerability - CVE-2026-35435
Azure AI Foundry Elevation of Privilege Vulnerability - CVE-2026-34327
Microsoft Partner Center Spoofing Vulnerability - CVE-2026-33844
Azure Managed Instance for Apache Cassandra Remote Code Exec
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