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CVE-2020-16955

HIGHCVSS 7.8/10EPSS 3.22%

Last modified

CVE-2020-16955 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. <p>An elevation of privilege vulnerability exists in the way that Microsoft Office Click-to-Run (C2R) AppVLP handles certain files. An attacker who successfully exploited the vulnerability could elevate privileges.</p> <p>To exploit this vulnerability, an attacker would need to convince a user to open a specially crafted file.</p> <p>The security update addresses the vulnerability by correcting how Microsoft Office Click-to-Run (C2R) components handle these files.</p>. EPSS estimates a 3.22% chance of exploitation in the next 30 days.

Description

<p>An elevation of privilege vulnerability exists in the way that Microsoft Office Click-to-Run (C2R) AppVLP handles certain files. An attacker who successfully exploited the vulnerability could elevate privileges.</p> <p>To exploit this vulnerability, an attacker would need to convince a user to open a specially crafted file.</p> <p>The security update addresses the vulnerability by correcting how Microsoft Office Click-to-Run (C2R) components handle these files.</p>

Metrics

CVSS 3.1
7.8/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability
3.22%

86.6th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
Microsoft365 AppsAll versions
MicrosoftOffice2013
MicrosoftOffice2019

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-16955?
<p>An elevation of privilege vulnerability exists in the way that Microsoft Office Click-to-Run (C2R) AppVLP handles certain files. An attacker who successfully exploited the vulnerability could elevate privileges.</p> <p>To exploit this vulnerability, an attacker would need to convince a user to open a specially crafted file.</p> <p>The security update addresses the vulnerability by correcting how Microsoft Office Click-to-Run (C2R) components handle these files.</p>
How severe is CVE-2020-16955?
CVE-2020-16955 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 3.22% probability of exploitation in the next 30 days.
How do I fix CVE-2020-16955?
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.

Are you affected by CVE-2020-16955?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST