Remote Code Execution Vulnerability in Microsoft Office Publisher
CVE-2026-81385

8.8HIGH

Key Information:

Vendor

Microsoft
Status
Microsoft 365 Apps For Enterprise
Microsoft Office 2019
Microsoft Office Ltsc 2021
Microsoft Office Ltsc 2024
Vendor
CVE Published:
8 September 2026

What is CVE-2026-81385?

A vulnerability in Microsoft Office Publisher allows an unauthorized attacker to execute malicious code through deserialization of untrusted data. Exploiting this flaw can enable attackers to remotely control affected systems, posing significant risks to data integrity and security. Users are encouraged to apply available patches and follow best practices to mitigate potential exploitation.

Affected Version(s)

Microsoft 365 Apps for Enterprise 32-bit Systems 16.0.1 < 16.0.20326.20138

Microsoft Office 2019 32-bit Systems 19.0.0 < 16.0.10417.20207

Microsoft Office LTSC 2021 32-bit Systems 16.0.1 < 16.0.14334.20906

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.