CVE-2020-1121

HIGHCVSS 7/10EPSS 0.86%

Last modified

CVE-2020-1121 is a high-severity vulnerability rated 7/10 on the CVSS scale. An elevation of privilege vulnerability exists when Windows improperly handles calls to Clipboard Service. An attacker who successfully exploited this vulnerability could run arbitrary code in the security context of the local system. EPSS estimates a 0.86% chance of exploitation in the next 30 days.

Description

An elevation of privilege vulnerability exists when Windows improperly handles calls to Clipboard Service. An attacker who successfully exploited this vulnerability could run arbitrary code in the security context of the local system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control over an affected system. The update addresses the vulnerability by correcting how Windows handles calls to Clipboard Service.

Metrics

EPSS Probability
0.86%

55.6th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
MicrosoftWindows 101809
MicrosoftWindows 101903
MicrosoftWindows 101909
MicrosoftWindows Server 2019All versions
MicrosoftWindows Server 20191903
MicrosoftWindows Server 20191909

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-1121?
An elevation of privilege vulnerability exists when Windows improperly handles calls to Clipboard Service. An attacker who successfully exploited this vulnerability could run arbitrary code in the security context of the local system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control over an affected system. The update addresses the vulnerability by correcting how Windows handles calls to Clipboard Service.
How severe is CVE-2020-1121?
CVE-2020-1121 has a CVSS score of 7/10 (HIGH severity). The EPSS model estimates a 0.86% probability of exploitation in the next 30 days.
How do I fix CVE-2020-1121?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

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Source: NVD / NIST