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CVE-2020-1503

17
FAUCET Score

CVE-2020-1503 is an information disclosure vulnerability in Microsoft Word that allows an attacker to improperly disclose memory contents, potentially compromising user data or the computer. It affects various Microsoft Office and SharePoint products. The vulnerability has a CVSS score of 5.5 (Medium), requiring user interaction to open a specially crafted document and knowledge of specific memory addresses. While not actively exploited (KEV: No), it has a high FAUCET Risk Score of 85/100 and has garnered some community and media attention, though no public exploit code (Metasploit, Nuclei, ExploitDB) is available.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:*:*
2010CPE matchmatch criteria
cpe:2.3:a:microsoft:office:2010:sp2:*:*:*:*:*:*
2016CPE matchmatch criteria
cpe:2.3:a:microsoft:office:2016:*:*:*:*:macos:*:*
2019CPE matchmatch criteria
cpe:2.3:a:microsoft:office:2019:*:*:*:*:-:*:*
2019CPE matchmatch criteria
cpe:2.3:a:microsoft:office:2019:*:*:*:*:macos:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
4.55%
Probability of exploitation in next 30 days
EPSS Percentile
90.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0455 is in the 97th percentile among its peer group of 5,765 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (23)

microsoftpatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: Microsoft SharePoint Enterprise Server 2016
View patch
microsoftpatch availablevia msrc
Product: Microsoft SharePoint Enterprise Server 2013 Service Pack 1
View patch
microsoftpatch availablevia msrc
Product: Microsoft SharePoint Server 2019
View patch
microsoftpatch availablevia msrc
Product: Microsoft Office 2019 for 32-bit editionsFixed in: https://aka.ms/OfficeSecurityReleases
microsoftpatch availablevia msrc
Product: Microsoft Office 2019 for 64-bit editionsFixed in: https://aka.ms/OfficeSecurityReleases
microsoftpatch availablevia msrc
Product: Microsoft 365 Apps for Enterprise for 32-bit SystemsFixed in: https://aka.ms/OfficeSecurityReleases
microsoftpatch availablevia msrc
Product: Microsoft 365 Apps for Enterprise for 64-bit SystemsFixed in: https://aka.ms/OfficeSecurityReleases
microsoftpatch availablevia msrc
Product: Microsoft Office 2019 for Mac
View patch
microsoftpatch availablevia msrc
Product: Microsoft Office 2016 for Mac
View patch
microsoftpatch availablevia msrc
Product: Microsoft Office Online Server
View patch
microsoftpatch availablevia msrc
Product: Microsoft Word 2016 (32-bit edition)
View patch
microsoftpatch availablevia msrc
Product: Microsoft Word 2016 (64-bit edition)
View patch
microsoftpatch availablevia msrc
Product: Microsoft Office 2010 Service Pack 2 (32-bit editions)
View patch
microsoftpatch availablevia msrc
Product: Microsoft Office 2010 Service Pack 2 (64-bit editions)
View patch
microsoftpatch availablevia msrc
Product: Microsoft Office Web Apps 2010 Service Pack 2
View patch
microsoftpatch availablevia msrc
Product: Microsoft Office Web Apps 2013 Service Pack 1
View patch
microsoftpatch availablevia msrc
Product: Microsoft SharePoint Server 2010 Service Pack 2
View patch
microsoftpatch availablevia msrc
Product: Microsoft Word 2010 Service Pack 2 (32-bit editions)
View patch
microsoftpatch availablevia msrc
Product: Microsoft Word 2010 Service Pack 2 (64-bit editions)
View patch
microsoftpatch availablevia msrc
Product: Microsoft Word 2013 RT Service Pack 1
microsoftpatch availablevia msrc
Product: Microsoft Word 2013 Service Pack 1 (32-bit editions)
View patch
microsoftpatch availablevia msrc
Product: Microsoft Word 2013 Service Pack 1 (64-bit editions)
View patch

Vendor Advisories (1)

microsoft2020-Aug/CVE-2020-1503Important

Microsoft Word Information Disclosure Vulnerability

Aug 11, 2020

References

portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2020-1503
PatchVendor Advisory