CVE-2025-54900

CWE-122 — Heap-based Buffer Overflow4 documents4 sources
Severity
7.8HIGH
EPSS
0.1%
top 73.62%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
11
Microsoft Microsoft 365 Apps FOR EnterpriseMicrosoft Microsoft Excel 2016Microsoft Microsoft Office 2019+8 more
Timeline
PublishedSep 9

Description

Heap-based buffer overflow in Microsoft Office Excel 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_excel_201616.0.0.0 — 16.0.5517.1000
▶CVEListV5microsoft/office_online_server16.0.0.0 — 16.0.10417.20047
▶NVDmicrosoft/office_online_server< 16.0.10417.20047
▶CVEListV5microsoft/microsoft_office_201919.0.0 — https://aka.ms/OfficeSecurityReleases
▶CVEListV5microsoft/microsoft_office_ltsc_202116.0.1 — https://aka.ms/OfficeSecurityReleases

🔴Vulnerability Details

2
GHSA
GHSA-9wp8-pg55-26xc: Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally↗2025-09-09
▶
CVEList
Microsoft Excel Remote Code Execution Vulnerability↗2025-09-09
▶

📋Vendor Advisories

1
Microsoft
Microsoft Excel Remote Code Execution Vulnerability↗2025-09-09
▶
CVE-2025-54900 (HIGH CVSS 7.8) | Heap-based buffer overflow in Micro | cvebase.io