CVE-2021-26855

KEV
Published: Mar 03, 2021 Last Modified: Ott 30, 2025
ExploitDB:
Other exploit source:
Google Dorks:
CRITICAL 9,1
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: none
HIGH 7,5
Source: [email protected]
Access Vector: network
Access Complexity: low
Authentication: none
Confidentiality: partial
Integrity: partial
Availability: partial

Description

AI Translation Available

Microsoft Exchange Server Remote Code Execution Vulnerability

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,9435
Percentile
1,0th
Updated

EPSS Score Trend (Last 90 Days)

918

Server-Side Request Forgery (SSRF)

Incomplete
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Confidentiality Integrity Access Control
Potential Impacts:
Read Application Data Execute Unauthorized Code Or Commands Bypass Protection Mechanism
Applicable Platforms
Technologies: AI/ML, Web Based, Web Server
View CWE Details
Exploit

Microsoft Exchange 2019 - Server-Side Request Forgery (Proxylogon) …

Microsoft Exchange 2019 - Server-Side Request Forgery (Proxylogon) (PoC)

Author: testanull Published:
View Exploit Code →
Exploit

Microsoft Exchange 2019 - Server-Side Request Forgery

Microsoft Exchange 2019 - Server-Side Request Forgery

Author: F5 Published:
View Exploit Code →
Exploit

Microsoft Exchange 2019 - Unauthenticated Email Download

Microsoft Exchange 2019 - Unauthenticated Email Download

Author: Gonzalo Villegas Published:
View Exploit Code →
Exploit

Microsoft Exchange 2019 - Unauthenticated Email Download (Metasploit)

Microsoft Exchange 2019 - Unauthenticated Email Download (Metasploit)

Author: mekhalleh Published:
View Exploit Code →
Application

Exchange Server by Microsoft

Product Information
Vendor Microsoft
Product Exchange Server
Version 2019
cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_1:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Exchange Server by Microsoft

Product Information
Vendor Microsoft
Product Exchange Server
Version 2016
cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_8:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Exchange Server by Microsoft

Product Information
Vendor Microsoft
Product Exchange Server
Version 2016
cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_17:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Exchange Server by Microsoft

Product Information
Vendor Microsoft
Product Exchange Server
Version 2019
cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_3:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Exchange Server by Microsoft

Product Information
Vendor Microsoft
Product Exchange Server
Version 2016
cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_19:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Exchange Server by Microsoft

Product Information
Vendor Microsoft
Product Exchange Server
Version 2016
cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_18:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Exchange Server by Microsoft

Product Information
Vendor Microsoft
Product Exchange Server
Version 2019
cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_7:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Exchange Server by Microsoft

Product Information
Vendor Microsoft
Product Exchange Server
Version 2019
cpe:2.3:a:microsoft:exchange_server:2019:-:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Exchange Server by Microsoft

Product Information
Vendor Microsoft
Product Exchange Server
Version 2019
cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_8:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Exchange Server by Microsoft

Product Information
Vendor Microsoft
Product Exchange Server
Version 2016
cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_16:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Exchange Server by Microsoft

Product Information
Vendor Microsoft
Product Exchange Server
Version 2016
cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_13:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Exchange Server by Microsoft

Product Information
Vendor Microsoft
Product Exchange Server
Version 2016
cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_14:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Exchange Server by Microsoft

Product Information
Vendor Microsoft
Product Exchange Server
Version 2016
cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_10:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Exchange Server by Microsoft

Product Information
Vendor Microsoft
Product Exchange Server
Version 2016
cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_9:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Exchange Server by Microsoft

Product Information
Vendor Microsoft
Product Exchange Server
Version 2019
cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_4:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Exchange Server by Microsoft

Product Information
Vendor Microsoft
Product Exchange Server
Version 2013
cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_22:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Exchange Server by Microsoft

Product Information
Vendor Microsoft
Product Exchange Server
Version 2019
cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_5:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Exchange Server by Microsoft

Product Information
Vendor Microsoft
Product Exchange Server
Version 2016
cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_11:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Exchange Server by Microsoft

Product Information
Vendor Microsoft
Product Exchange Server
Version 2013
cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_21:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Exchange Server by Microsoft

Product Information
Vendor Microsoft
Product Exchange Server
Version 2016
cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_15:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Exchange Server by Microsoft

Product Information
Vendor Microsoft
Product Exchange Server
Version 2016
cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_12:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Exchange Server by Microsoft

Product Information
Vendor Microsoft
Product Exchange Server
Version 2019
cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_6:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Exchange Server by Microsoft

Product Information
Vendor Microsoft
Product Exchange Server
Version 2013
cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Exchange Server by Microsoft

Product Information
Vendor Microsoft
Product Exchange Server
Version 2019
cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_2:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://www.cisa.gov/known-exploited-vulnerabilities-catalo…
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021…
http://packetstormsecurity.com/files/161846/Microsoft-Excha…
http://packetstormsecurity.com/files/161846/Microsoft-Exchange-2019-SSRF-Arbitr…
http://packetstormsecurity.com/files/161938/Microsoft-Excha…
http://packetstormsecurity.com/files/161938/Microsoft-Exchange-ProxyLogon-Remot…
http://packetstormsecurity.com/files/162610/Microsoft-Excha…
http://packetstormsecurity.com/files/162610/Microsoft-Exchange-2019-Unauthentic…
http://packetstormsecurity.com/files/162736/Microsoft-Excha…
http://packetstormsecurity.com/files/162736/Microsoft-Exchange-ProxyLogon-Colle…
https://portal.msrc.microsoft.com/en-US/security-guidance/a…
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-268…
http://packetstormsecurity.com/files/161846/Microsoft-Excha…
http://packetstormsecurity.com/files/161846/Microsoft-Exchange-2019-SSRF-Arbitr…
http://packetstormsecurity.com/files/161938/Microsoft-Excha…
http://packetstormsecurity.com/files/161938/Microsoft-Exchange-ProxyLogon-Remot…
http://packetstormsecurity.com/files/162610/Microsoft-Excha…
http://packetstormsecurity.com/files/162610/Microsoft-Exchange-2019-Unauthentic…
http://packetstormsecurity.com/files/162736/Microsoft-Excha…
http://packetstormsecurity.com/files/162736/Microsoft-Exchange-ProxyLogon-Colle…
https://portal.msrc.microsoft.com/en-US/security-guidance/a…
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-268…