CVE-2020-0688
Microsoft Exchange Server Validation Key Remote Code Execution Vulnerability
- Published
- Feb 11, 2020
- Updated
- Oct 21, 2025
- Assigning CNA
- microsoft
- Evidence observed
- Mar 2, 2020
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HHigh · next 30 days
- Percentile
- 100.0%
- Model date
- Oct 17, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
CISA Known Exploited
This CVE appears in the CISA Known Exploited Vulnerabilities catalog.
Summary
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'.
Sources
modules/exploits/windows/http/exchange_ecp_viewstate.rb
Metasploit Framework modulesDeclared conditions
- platform: Windows($.exploit_windows/http/exchange_ecp_viewstate.platform)
- verification: check_declared($.exploit_windows/http/exchange_ecp_viewstate.check)
- CVE-2020-0688Exploit
CVE-2020-0688_Microsoft Exchange default MachineKeySection deserialize vulnerability
- CVE-2020-0688Scanner
Responsible use
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