CVE-2025-21354 — Untrusted Pointer Dereference in Microsoft 365 Apps FOR Enterprise

CWE-822 — Untrusted Pointer Dereference4 documents4 sources
Severity
7.8HIGHNVD
CNA8.4
EPSS
1.5%
top 18.58%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
9
Microsoft 365 Apps FOR EnterpriseMicrosoft Office 2019Microsoft Office Ltsc 2021+6 more
Timeline
PublishedJan 14

Description

Microsoft Excel Remote Code Execution Vulnerability

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 Packages10 packages

▶CVEListV5microsoft/office_online_server16.0.0.0 — 16.0.10416.20047
▶NVDmicrosoft/office_online_server< 16.0.10416.20047
▶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

Patches

Patch: msrc.microsoft.com ↗

🔴Vulnerability Details

2
GHSA
GHSA-w3rx-f2fq-82cx: Microsoft Excel Remote Code Execution Vulnerability↗2025-01-14
▶
CVEList
Microsoft Excel Remote Code Execution Vulnerability↗2025-01-14
▶

📋Vendor Advisories

1
Microsoft
Microsoft Excel Remote Code Execution Vulnerability↗2025-01-14
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CVE-2025-21354 — Untrusted Pointer Dereference | cvebase