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CVE-2023-33150

28
FAUCET Score

CVE-2023-33150 is a critical Microsoft Office Security Feature Bypass vulnerability affecting Microsoft 365 Apps, Microsoft Office, and Microsoft Word. With a CVSS score of 9.6, it allows an unauthenticated attacker to achieve high impact on confidentiality, integrity, and availability through a low-complexity network attack requiring user interaction. While not currently listed in CISA's KEV catalog and lacking public exploit code, its high CVSS score and notable media coverage indicate a significant risk.

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:*
2019CPE matchmatch criteria
cpe:2.3:a:microsoft:office:2019:*:*:*:*:-:x64:*
2019CPE matchmatch criteria
cpe:2.3:a:microsoft:office:2019:*:*:*:*:-:x86:*
2021CPE matchmatch criteria
cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:*:x64:*

CVSS Data

CVSS version used by this source: 3.1

9.6CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.15%
Probability of exploitation in next 30 days
EPSS Percentile
80.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0215 is in the 84th percentile among its peer group of 836 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.8 Bluesky, 0.5 Mastodon, and 1.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (12)

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 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 Word 2016 (32-bit edition)Fixed in: 16.0.5404.1000
View patch
microsoftpatch availablevia msrc
Product: Microsoft Word 2016 (64-bit edition)Fixed in: 16.0.5404.1000
View patch
microsoftpatch availablevia msrc
Product: Microsoft Word 2013 RT Service Pack 1Fixed in: 15.0.5571.1000
microsoftpatch availablevia msrc
Product: Microsoft Word 2013 Service Pack 1 (32-bit editions)Fixed in: 15.0.5571.1000
View patch
microsoftpatch availablevia msrc
Product: Microsoft Word 2013 Service Pack 1 (64-bit editions)Fixed in: 15.0.5571.1000
View patch

Vendor Advisories (1)

microsoft2023-Jul/CVE-2023-33150Important

Microsoft Office Security Feature Bypass Vulnerability

Jul 11, 2023

References

msrc.microsoft.com / update-guide/vulnerability/CVE-2023-33150
PatchVendor Advisory