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Vulnerability record · CVE-2021-31178 · published 11 May 2021
CVE-2021-31178: Microsoft 365 apps vulnerability
Microsoft · 365 Apps
Microsoft Office Information Disclosure Vulnerability
5.5 CVSS 3.1 Medium EPSS 16% · top 3.2% CWE-191 · CWE-191
5.5CVSS 3.1 base score, v2 4.3
16%EPSS exploitation probability, 30 days
NoNot in CISA KEV
6Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD
Description
Microsoft Office Information Disclosure Vulnerability
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Affected products
6 vulnerable configurations from NVD's CPE data, grouped by vendor and product.
References
| Link | Tags |
|---|---|
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31178 | PatchVendor Advisory |
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31178 | PatchVendor Advisory |
Track CVE-2021-31178 inside VULONE
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Source: NIST National Vulnerability Database (record CVE-2021-31178), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.
