CVE-2025-21364 — Deserialization of Untrusted Data in Microsoft 365 Apps FOR Enterprise

CWE-502 — Deserialization of Untrusted Data9 documents7 sources
Severity
7.8HIGHNVD
EPSS
0.2%
top 52.47%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Microsoft 365 Apps FOR EnterpriseMicrosoft Office Ltsc 2024Microsoft Office Long Term Servicing Channel
Timeline
PublishedJan 14

Description

Microsoft Excel Security Feature Bypass 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 Packages3 packages

▶CVEListV5microsoft/microsoft_office_ltsc_202416.0.0 — https://aka.ms/OfficeSecurityReleases
▶CVEListV5microsoft/microsoft_365_apps_for_enterprise16.0.1 — https://aka.ms/OfficeSecurityReleases

Patches

Patch: msrc.microsoft.com ↗

🔴Vulnerability Details

2
GHSA
GHSA-w22v-wrfq-q6j9: Microsoft Excel Security Feature Bypass Vulnerability↗2025-01-14
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CVEList
Microsoft Excel Security Feature Bypass Vulnerability↗2025-01-14
▶

📋Vendor Advisories

1
Microsoft
Microsoft Excel Security Feature Bypass Vulnerability↗2025-01-14
▶

🕵️Threat Intelligence

5
Bleepingcomputer
Microsoft January 2025 Patch Tuesday fixes 8 zero-days, 159 flaws↗2025-01-14
▶
Qualys
Microsoft and Adobe Patch Tuesday, January 2025 Security Update Review↗2025-01-14
▶
Talos
Microsoft Patch Tuesday for January 2025 — Snort rules and prominent vulnerabilities↗2025-01-14
▶
Qualys
Microsoft and Adobe Patch Tuesday, January 2025 Security Update Review | Qualys↗2025-01-14
▶
Talos
Microsoft Patch Tuesday for January 2025 — Snort rules and prominent vulnerabilities↗2025-01-14
▶
CVE-2025-21364 — Deserialization of Untrusted Data | cvebase