CVE-2025-62556

HighCVSS 7.8/10Last modified Oct 14, 2026

Description

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

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

VendorProductVersions
MicrosoftMicrosoft 365 Apps for Enterprise>= 16.0.1, < https://aka.ms/OfficeSecurityReleases
MicrosoftMicrosoft Excel 2016>= 16.0.0.0, < 16.0.5530.1000
MicrosoftMicrosoft Office 2019>= 19.0.0, < https://aka.ms/OfficeSecurityReleases
MicrosoftMicrosoft Office LTSC 2021>= 16.0.1, < https://aka.ms/OfficeSecurityReleases
MicrosoftMicrosoft Office LTSC 2024>= 16.0.0, < https://aka.ms/OfficeSecurityReleases
MicrosoftMicrosoft Office LTSC for Mac 2021>= 16.0.1, < 16.104.25121423
MicrosoftMicrosoft Office LTSC for Mac 2024>= 16.0.0, < 16.104.25121423
MicrosoftOffice Online Server>= 16.0.0.0, < 16.0.10417.20075

References

Timeline

Published
Dec 9, 2025
Last modified
Oct 14, 2026
NVD status
Analyzed

Related CVEs from 2025

CVE-2025-62556: High severity, CVSS 7.8 | Vulnix