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CVE-2023-33133

41
FAUCET Score

CVE-2023-33133 is a remote code execution vulnerability affecting Microsoft Excel, Microsoft 365 Apps, and Microsoft Office Online Server. With a CVSS score of 7.8 (High), successful exploitation requires user interaction (UI:R) and could lead to complete compromise of confidentiality, integrity, and availability (C:H/I:H/A:H) on the affected system. While the vulnerability has a high EPSS score and FAUCET Risk Score, there is currently no evidence of active exploitation, nor are public exploit codes available in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage are minimal, with only one mention and one article identified.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x64:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x86:*
2013CPE matchmatch criteria
cpe:2.3:a:microsoft:excel:2013:sp1:*:*:*:*:x64:*
2013CPE matchmatch criteria
cpe:2.3:a:microsoft:excel:2013:sp1:*:*:*:*:x86:*
2013CPE matchmatch criteria
cpe:2.3:a:microsoft:excel:2013:sp1:*:*:rt:*:*:*

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
44.05%
Probability of exploitation in next 30 days
EPSS Percentile
98.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.4405 is in the 99th percentile among its peer group of 11,616 CVEs.

Social Chatter

No social media mentions found for this CVE.

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 (15)

microsoftpatch availablevia nvd_reference
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 LTSC 2021 for 64-bit editionsFixed in: https://aka.ms/OfficeSecurityReleases
microsoftpatch availablevia msrc
Product: Microsoft Office LTSC 2021 for 32-bit editionsFixed in: https://aka.ms/OfficeSecurityReleases
microsoftpatch availablevia msrc
Product: Microsoft Office 2019 for MacFixed in: 16.74.23061100
View patch
microsoftpatch availablevia msrc
Product: Microsoft Office LTSC for Mac 2021Fixed in: 16.74.23061100
View patch
microsoftpatch availablevia msrc
Product: Microsoft Office Online ServerFixed in: 16.0.10399.20000
View patch
microsoftpatch availablevia msrc
Product: Microsoft Excel 2016 (32-bit edition)Fixed in: 16.0.5400.1000
View patch
microsoftpatch availablevia msrc
Product: Microsoft Excel 2016 (64-bit edition)Fixed in: 16.0.5400.1000
View patch
microsoftpatch availablevia msrc
Product: Microsoft Excel 2013 RT Service Pack 1Fixed in: 15.0.5563.1000
microsoftpatch availablevia msrc
Product: Microsoft Excel 2013 Service Pack 1 (32-bit editions)Fixed in: 15.0.5563.1000
View patch
microsoftpatch availablevia msrc
Product: Microsoft Excel 2013 Service Pack 1 (64-bit editions)Fixed in: 15.0.5563.1000
View patch

Vendor Advisories (1)

microsoft2023-Jun/CVE-2023-33133Important

Microsoft Excel Remote Code Execution Vulnerability

Jun 13, 2023

References

talosintelligence.com / vulnerability_reports/TALOS-2023-1734
msrc.microsoft.com / update-guide/vulnerability/CVE-2023-33133
PatchVendor Advisory