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CVE-2020-1224

Microsoft Excel Information Disclosure Vulnerability

MEDIUM
5.5
CVSS Score
Published: September 11, 2020 at 05:09 PM UTC
Updated: June 17, 2026 at 03:00 AM UTC
9 products affected across 1 vendorOffice365 AppsSharePoint Server

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Severity
MEDIUM5.5
Exploit prediction
EPSS 4%

Description

<p>An information disclosure vulnerability exists when Microsoft Excel improperly discloses the contents of its memory. An attacker who exploited the vulnerability could use the information to compromise the user’s computer or data.</p> <p>To exploit the vulnerability, an attacker could craft a special document file and then convince the user to open it. An attacker must know the memory address location where the object was created.</p> <p>The update addresses the vulnerability by changing the way certain Excel functions handle objects in memory.</p>

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

365 Apps· Microsoft
95%
16.0.1 ≤ v < https://aka.ms/OfficeSecurityReleases16.0.1
Affected range stops below https://aka.ms/OfficeSecurityReleases, so it looks safe — our inference, not a vendor statement
Excel· Microsoft
95%
13.0.0.0 ≤ v < publication15.0.0.0 ≤ v < publication16.0.0.0 ≤ v < publication13.0.0.015.0.0.016.0.0.020102010 sp220132013 sp12016
Affected range stops below publication, so it looks safe — our inference, not a vendor statement
Office· Microsoft
95%
20162019
Office Online Server· Microsoft
95%
16.0.1 ≤ v < publication16.0.1
Affected range stops below publication, so it looks safe — our inference, not a vendor statement
Office Web Apps· Microsoft
95%
15.0.0.0 ≤ v < publication15.0.0.020132013 sp1
Affected range stops below publication, so it looks safe — our inference, not a vendor statement
SharePoint Enterprise Server· Microsoft
95%
15.0.0 ≤ v < publication15.0.02013 sp1
Affected range stops below publication, so it looks safe — our inference, not a vendor statement
SharePoint Server· Microsoft
95%
2013
Office 2016· Microsoft
60%
16.0.0 ≤ v < publication16.0.0
Affected range stops below publication, so it looks safe — our inference, not a vendor statement
Office 2019· Microsoft
60%
16.0.0 ≤ v < publication19.0.0 ≤ v < https://aka.ms/OfficeSecurityReleases16.0.019.0.0
Affected range stops below https://aka.ms/OfficeSecurityReleases, so it looks safe — our inference, not a vendor statement
Affected range stops below publication, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_MISCPatchVendor Advisory
Source: [email protected]
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1224

CVSS

5.5MEDIUMmicrosoft
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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