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Vulnerability Intelligence

CVE-2026-20953 | Mondoo Vulnerability Intelligence

Vulnerability IntelligenceCVE-2026-20953

CVE-2026-20953

HIGH8.4

Microsoft Office Remote Code Execution Vulnerability

Published Jan 13, 2026

Modified 3 days ago

References

ADVISORYhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20953 ADVISORYhttps://www.cve.org/CVERecord?id=CVE-2026-20953

CVSS Analysis

CVSS v3.1

8.4

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

LowAC:L

Privileges Required

NonePR:N

User Interaction

NoneUI:N

Scope

Scope

UnchangedS:U

Impact

Confidentiality

HighC:H

Integrity

HighI:H

Availability

HighA:H

8.4/CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Weakness Type (CWE)

Memory Safety

Ecosystems

Timeline

PublishedJan 13, 2026

ModifiedJan 16, 2026