CVE-2025-54906

CWE-416 — Use After Free4 documents4 sources
Severity
7.8HIGH
EPSS
0.2%
top 63.94%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
12
Microsoft Microsoft 365 Apps FOR EnterpriseMicrosoft Microsoft Office 2016Microsoft Microsoft Office 2019+9 more
Timeline
PublishedSep 9

Description

Free of memory not on the heap in Microsoft Office allows an unauthorized attacker to execute code locally.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages12 packages

▶CVEListV5microsoft/microsoft_office_201616.0.0 — 16.0.5517.1000
▶CVEListV5microsoft/microsoft_office_201919.0.0 — https://aka.ms/OfficeSecurityReleases
▶CVEListV5microsoft/microsoft_office_ltsc_202116.0.1 — https://aka.ms/OfficeSecurityReleases
▶CVEListV5microsoft/microsoft_office_ltsc_202416.0.0 — https://aka.ms/OfficeSecurityReleases
▶CVEListV5microsoft/microsoft_office_ltsc_for_mac_202116.0.1 — 16.101.25091314

🔴Vulnerability Details

2
CVEList
Microsoft Office Remote Code Execution Vulnerability↗2025-09-09
▶
GHSA
GHSA-5x6f-vhcg-x3vx: Free of memory not on the heap in Microsoft Office allows an unauthorized attacker to execute code locally↗2025-09-09
▶

📋Vendor Advisories

1
Microsoft
Microsoft Office Remote Code Execution Vulnerability↗2025-09-09
▶