Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2020-16929

27
FAUCET Score

CVE-2020-16929 is a remote code execution vulnerability in Microsoft Excel and related Office products, including Microsoft 365 Apps and SharePoint Server. It has a CVSS score of 7.8 (HIGH) and allows an attacker to run arbitrary code by convincing a user to open a specially crafted Excel file, potentially leading to full system compromise if the user has administrative privileges. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion and media coverage, indicating awareness among security researchers. It is not listed in CISA's KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:microsoft:365_apps:-:*:*:*:*:*:*:*
2010CPE matchmatch criteria
cpe:2.3:a:microsoft:excel:2010:sp2:*:*:*:*:*:*
2013CPE matchmatch criteria
cpe:2.3:a:microsoft:excel:2013:sp1:*:*:*:*:*:*
2013CPE matchmatch criteria
cpe:2.3:a:microsoft:excel:2013:sp1:*:*:rt:*:*:*
2016CPE matchmatch criteria
cpe:2.3:a:microsoft:excel:2016:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.70%
Probability of exploitation in next 30 days
EPSS Percentile
88.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0370 is in the 89th percentile among its peer group of 11,617 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (27)

microsoftpatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: Microsoft SharePoint Enterprise Server 2013 Service Pack 1
View patch
microsoftpatch availablevia msrc
Product: Microsoft Office 2019 for 32-bit editions
microsoftpatch availablevia msrc
Product: Microsoft Office 2019 for 64-bit editions
microsoftpatch availablevia msrc
Product: Microsoft 365 Apps for Enterprise for 32-bit Systems
microsoftpatch availablevia msrc
Product: Microsoft 365 Apps for Enterprise for 64-bit Systems
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 Excel 2016 (32-bit edition)
View patch
microsoftpatch availablevia msrc
Product: Microsoft Excel 2016 (64-bit edition)
View patch
microsoftpatch availablevia msrc
Product: Microsoft Office 2016 (32-bit edition)
View patch
microsoftpatch availablevia msrc
Product: Microsoft Office 2016 (64-bit edition)
View patch
microsoftpatch availablevia msrc
Product: Microsoft Excel 2010 Service Pack 2 (32-bit editions)
View patch
microsoftpatch availablevia msrc
Product: Microsoft Excel 2010 Service Pack 2 (64-bit editions)
View patch
microsoftpatch availablevia msrc
Product: Microsoft Excel 2013 RT Service Pack 1
microsoftpatch availablevia msrc
Product: Microsoft Excel 2013 Service Pack 1 (32-bit editions)
microsoftpatch availablevia msrc
Product: Microsoft Excel 2013 Service Pack 1 (64-bit editions)
microsoftpatch availablevia msrc
Product: Microsoft Excel Web App 2010 Service Pack 2
View patch
microsoftpatch availablevia msrc
Product: Microsoft Office Web Apps 2010 Service Pack 2
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 2013 RT Service Pack 1
microsoftpatch availablevia msrc
Product: Microsoft Office 2013 Service Pack 1 (32-bit editions)
microsoftpatch availablevia msrc
Product: Microsoft Office 2013 Service Pack 1 (64-bit editions)
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

Vendor Advisories (1)

microsoft2020-Oct/CVE-2020-16929Important

Microsoft Excel Remote Code Execution Vulnerability

Oct 13, 2020

References

portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2020-16929
PatchVendor Advisory
zerodayinitiative.com / advisories/ZDI-20-1251
Third Party Advisory