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Vulnerability record · CVE-2026-45454 · published 9 June 2026

CVE-2026-45454: Microsoft sharepoint server path traversal vulnerability

Microsoft · Sharepoint Server

Improper limitation of a pathname to a restricted directory ('path traversal') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

8.8 CVSS 3.1 High EPSS 1.5% · top 26.4% CWE-22 · Path traversal
8.8CVSS 3.1 base score
1.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
23 Jul 2026Last modified by NVD

Description

Improper limitation of a pathname to a restricted directory ('path traversal') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45454 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-45454), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.