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Vulnerability record · CVE-2025-47994 · published 8 July 2025

CVE-2025-47994: Microsoft 365 apps deserialization of untrusted data vulnerability

Microsoft · 365 Apps

Deserialization of untrusted data in Microsoft Office allows an unauthorized attacker to elevate privileges locally.

8.6 CVSS 3.1 High EPSS 2.8% · top 14.1% CWE-502 · Deserialization of untrusted data
8.6CVSS 3.1 base score
2.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

Description

Deserialization of untrusted data in Microsoft Office allows an unauthorized attacker to elevate privileges locally.

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

Affected products

4 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-47994 Vendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2025-47994), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.