CVE-2025-59227: 365 apps Version not applicable in the source CPE; +11 more affected products

CVE-2025-59227. CVSS 3.1 base score 7.8 (HIGH, Vendor/CNA). EPSS 0.00516 (percentile 0.42645), scored 17-Oct-2026.

Affected technology

365 apps · Version not applicable in the source CPE
microsoft

365 copilot · before 16.0.19328.20000 (exclusive)
microsoft

office · 2016
microsoft

office · 2019
microsoft

office long term servicing channel · 2021
microsoft

office long term servicing channel · 2024
microsoft

Microsoft 365 Apps for Enterprise · 16.0.1 to before https://aka.ms/OfficeSecurityReleases
Microsoft

Microsoft Office 2016 · 16.0.0 to before 16.0.5522.1000
Microsoft

Microsoft Office 2019 · 19.0.0 to before https://aka.ms/OfficeSecurityReleases
Microsoft

Microsoft Office for Android · 16.0.1 to before 16.0.19328.20000
Microsoft

Microsoft Office LTSC 2021 · 16.0.1 to before https://aka.ms/OfficeSecurityReleases
Microsoft

Microsoft Office LTSC 2024 · 16.0.0 to before https://aka.ms/OfficeSecurityReleases
Microsoft

Microsoft Office LTSC for Mac 2021 · 16.0.1 to before 16.102.25101223
Microsoft

Microsoft Office LTSC for Mac 2024 · 16.0.0 to before 16.102.25101223
Microsoft

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Local · No privileges required · User interaction required

What an attacker can do

The source says use after free in Microsoft Office allows an unauthorized attacker to execute code locally. Vendor/CNA’s CVSS 3.1 assessment (base score 7.8/10) rates confidentiality, integrity and availability impact as high.

Published 18-Oct-2026 22:52 UTC

CWE: CWE-416
CCR priority: 31.3 /100 (P4)
CVSS 3.1: 7.8 /10 · CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H · Vendor/CNA
EPSS: 0.00516 · percentile 0.42645 · 2026-10-17
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-18 22:50:08.248207+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2025-59227.html