CVE-2022-33631: microsoft 365_apps Protection Mechanism Failure
CVSS: 7.3v3.1HighModified
Published 09-08-2022Last modified 05-06-2025
Vulnerability summary
CVE-2022-33631 is a high (CVSS 7.3) Protection Mechanism Failure vulnerability in microsoft 365_apps. EPSS estimates a 0.81% chance of exploitation in the next 30 days, higher than 56.3% of scored vulnerabilities.
CVSS score
7.3/10
010
High · v3.1 (CVE.org)EPSS score
0.81%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 09-08-2022PublishedVulnerability first disclosed.
- 05-06-2025Last modifiedVulnerability information updated.
Description
Microsoft Excel Security Feature Bypass Vulnerability
CVSS metrics
2 scores · 2 sources · 1 versionHigh 7.3Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:CSourcesAll 2 agree
- NVDNIST7.3HighCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.81%
Chance of exploitation in the next 30 days
Percentile
56%
Versus all other CVEs
30-day change
0.00 pp
From 0.81% on 21-09-2026
21-09-202621-10-2026
EPSS score0.81%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Microsoft9 products
- 365_appsna
- excel2013:sp1 | 2016
- microsoft 365 apps for enterprise≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases
- microsoft excel 2013 service pack 1≥ 15.0.0.0, < 15.0.5475.1001
- microsoft excel 2016≥ 16.0.0.0, < 16.0.14931.20612
1 vendor · 9 products
References
1 links- msrc.microsoft.com/update-guide/vulnerability/CVE-2022-33631Vendor Advisory