CVE-2020-0688

Known Exploited Public Exploit

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'.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 94.42% Top 5%
KEV Since 
Vendor Advisory microsoft.com
Affected: Microsoft Microsoft Exchange Server 2013
Affected: Microsoft Microsoft Exchange Server 2019 Cumulative Update 3
Affected: Microsoft Microsoft Exchange Server 2016 Cumulative Update 14
Affected: Microsoft Microsoft Exchange Server 2016 Cumulative Update 15
Affected: Microsoft Microsoft Exchange Server 2019 Cumulative Update 4
Affected: Microsoft Microsoft Exchange Server 2010 Service Pack 3 Update Rollup 30
Published at:
Updated at:

References

Link Tags
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0688 patch vendor advisory
https://www.zerodayinitiative.com/advisories/ZDI-20-258/ vdb entry third party advisory
http://packetstormsecurity.com/files/156592/Microsoft-Exchange-2019-15.2.221.12-Remote-Code-Execution.html exploit vdb entry third party advisory
http://packetstormsecurity.com/files/156620/Exchange-Control-Panel-Viewstate-Deserialization.html exploit vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2020-0688?
CVE-2020-0688 has been scored as a high severity vulnerability.
How to fix CVE-2020-0688?
To fix CVE-2020-0688, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-0688 being actively exploited in the wild?
It is confirmed that CVE-2020-0688 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~94% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-0688?
CVE-2020-0688 affects Microsoft Microsoft Exchange Server 2013, Microsoft Microsoft Exchange Server 2019 Cumulative Update 3, Microsoft Microsoft Exchange Server 2016 Cumulative Update 14, Microsoft Microsoft Exchange Server 2016 Cumulative Update 15, Microsoft Microsoft Exchange Server 2019 Cumulative Update 4, Microsoft Microsoft Exchange Server 2010 Service Pack 3 Update Rollup 30.
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