CVE-2020-0688
Detail
Description
A remote code execution vulnerability exists in Microsoft Exchange software when the software fails to properly handle objects in memory, aka 'Microsoft Exchange Memory Corruption Vulnerability'.
Metrics
CVSS Version 4.0
CVSS Version 3.x
CVSS Version 2.0
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
CVSS 4.0 Severity and Vector Strings:
NVD assessment
not yet provided.
CVSS 3.x Severity and Vector Strings:
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 Severity and Vector Strings:
Vector:
(AV:N/AC:L/Au:S/C:C/I:C/A:C)
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This CVE is in CISA's Known Exploited Vulnerabilities Catalog
Reference
CISA's BOD 22-01 and Known
Exploited Vulnerabilities Catalog for further guidance and requirements.
Vulnerability Name
Date Added
Due Date
Required Action
Microsoft Exchange Server Validation Key Remote Code Execution Vulnerability
11/03/2021
05/03/2022
Apply updates per vendor instructions.
Weakness Enumeration
CWE-ID
CWE Name
Source
CWE-287
Improper Authentication
NIST
CISA-ADP
Change History
16 change records found show changes
Modified Analysis by NIST 10/29/2025 10:27:21 AM
Action
Type
Old Value
New Value
Added
Reference Type
CISA-ADP: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-0688 Types: US Government Resource
CVE Modified by CISA-ADP 10/21/2025 8:16:52 PM
Action
Type
Old Value
New Value
Added
Reference
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-0688
CVE Modified by CISA-ADP 10/21/2025 4:17:42 PM
Action
Type
Old Value
New Value
Removed
Reference
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-0688
CVE Modified by CISA-ADP 10/21/2025 3:18:12 PM
Action
Type
Old Value
New Value
Added
Reference
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-0688
Modified Analysis by NIST 4/04/2025 3:31:36 PM
Action
Type
Old Value
New Value
CVE Modified by CISA-ADP 2/04/2025 2:15:22 PM
Action
Type
Old Value
New Value
Added
CVSS V3.1
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Added
CWE
CWE-287
CVE Modified by CVE 11/20/2024 11:54:00 PM
Action
Type
Old Value
New Value
Added
Reference
http://packetstormsecurity.com/files/156592/Microsoft-Exchange-2019-15.2.221.12-Remote-Code-Execution.html
Added
Reference
http://packetstormsecurity.com/files/156620/Exchange-Control-Panel-Viewstate-Deserialization.html
Added
Reference
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0688
Added
Reference
https://www.zerodayinitiative.com/advisories/ZDI-20-258/
CVE Modified by Microsoft Corporation 5/14/2024 2:13:32 AM
Action
Type
Old Value
New Value
Reanalysis by NIST 2/13/2024 12:23:13 PM
Action
Type
Old Value
New Value
CWE Remap by NIST 7/12/2022 1:42:04 PM
Action
Type
Old Value
New Value
Changed
CWE
CWE-798
CWE-287
Modified Analysis by NIST 12/30/2021 5:08:09 PM
Action
Type
Old Value
New Value
Changed
Reference Type
http://packetstormsecurity.com/files/156592/Microsoft-Exchange-2019-15.2.221.12-Remote-Code-Execution.html No Types Assigned
http://packetstormsecurity.com/files/156592/Microsoft-Exchange-2019-15.2.221.12-Remote-Code-Execution.html Exploit, Third Party Advisory, VDB Entry
Changed
Reference Type
http://packetstormsecurity.com/files/156620/Exchange-Control-Panel-Viewstate-Deserialization.html No Types Assigned
http://packetstormsecurity.com/files/156620/Exchange-Control-Panel-Viewstate-Deserialization.html Exploit, Third Party Advisory, VDB Entry
Changed
Reference Type
https://www.zerodayinitiative.com/advisories/ZDI-20-258/ No Types Assigned
https://www.zerodayinitiative.com/advisories/ZDI-20-258/ Third Party Advisory, VDB Entry
CWE Remap by NIST 7/21/2021 7:39:23 AM
Action
Type
Old Value
New Value
Changed
CWE
CWE-502
CWE-798
CVE Modified by Microsoft Corporation 3/04/2020 11:15:11 AM
Action
Type
Old Value
New Value
Added
Reference
http://packetstormsecurity.com/files/156620/Exchange-Control-Panel-Viewstate-Deserialization.html [No Types Assigned]
CVE Modified by Microsoft Corporation 3/02/2020 1:15:11 PM
Action
Type
Old Value
New Value
Added
Reference
http://packetstormsecurity.com/files/156592/Microsoft-Exchange-2019-15.2.221.12-Remote-Code-Execution.html [No Types Assigned]
CVE Modified by Microsoft Corporation 2/20/2020 12:15:13 PM
Action
Type
Old Value
New Value
Added
Reference
https://www.zerodayinitiative.com/advisories/ZDI-20-258/ [No Types Assigned]
Initial Analysis by NIST 2/13/2020 4:05:09 PM
Action
Type
Old Value
New Value
Added
CVSS V3.1
NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Added
CVSS V2
NIST (AV:N/AC:L/Au:S/C:C/I:C/A:C)
Added
CWE
NIST CWE-502
Added
CPE Configuration
OR
*cpe:2.3:a:microsoft:exchange_server:2010:sp3_rollup_30:*:*:*:*:*:*
*cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*
*cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_14:*:*:*:*:*:*
*cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_15:*:*:*:*:*:*
*cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_3:*:*:*:*:*:*
*cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_4:*:*:*:*:*:*
Changed
Reference Type
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0688 No Types Assigned
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0688 Patch, Vendor Advisory
Quick Info
CVE Dictionary Entry: CVE-2020-0688 NVD
Published Date: 02/11/2020 NVD
Last Modified: 10/29/2025
Source: Microsoft Corporation