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Vulnerability record · CVE-2025-62556 · published 9 December 2025

CVE-2025-62556: Microsoft 365 apps vulnerability

Microsoft · 365 Apps

Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

7.8 CVSS 3.1 High EPSS 0.56% · top 55.7% CWE-822 · CWE-822
7.8CVSS 3.1 base score
0.56%EPSS exploitation probability, 30 days
NoNot in CISA KEV
5Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

Description

Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

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

Affected products

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

References

LinkTags
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-62556 Vendor Advisory

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Related vulnerabilities

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

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Source: NIST National Vulnerability Database (record CVE-2025-62556), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.