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CVE-2026-35439 - Vulnerability Analysis

HighCVSS: 8.8

Last Updated: May 12, 2026

Microsoft Office SharePoint - Insecure Deserialization

Published: May 12, 2026Updated: May 12, 2026Remote Exploitable

Overview

Microsoft Office SharePoint contains an insecure deserialization vulnerability caused by deserialization of untrusted data, letting authorized attackers execute code over a network, exploit requires attacker authorization.

Severity & Score

Severity: High

CVSS Score: 8.8

Impact

Authorized attackers can execute arbitrary code remotely, potentially compromising the system.

Mitigation

Update to the latest version of Microsoft Office SharePoint.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-35439

Related Resources

Vulnerability Intelligence Dashboard
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Details

CVE ID: CVE-2026-35439
Severity: High
CVSS Score: 8.8
Type: insecure_deserialization
Status: new

CWE

CWE-502

CVSS Metrics

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H