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Vulnerability record · CVE-2019-0540 · published 5 March 2019

CVE-2019-0540: Microsoft excel viewer open redirect vulnerability

Microsoft · Excel Viewer

A security feature bypass vulnerability exists when Microsoft Office does not validate URLs.An attacker could send a victim a specially crafted file, which could trick the victim into entering credentials, aka 'Microsoft Office Security Feature Bypass Vulnerability'.

5.5 CVSS 3.0 Medium EPSS 13% · top 3.9% CWE-601 · Open redirect
5.5CVSS 3.0 base score, v2 4.3
13%EPSS exploitation probability, 30 days
NoNot in CISA KEV
5Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

A security feature bypass vulnerability exists when Microsoft Office does not validate URLs.An attacker could send a victim a specially crafted file, which could trick the victim into entering credentials, aka 'Microsoft Office Security Feature Bypass Vulnerability'.

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Affected products

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

References

LinkTags
http://www.securityfocus.com/bid/106863 Third Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0540 PatchVendor Advisory
http://www.securityfocus.com/bid/106863 Third Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0540 PatchVendor 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-2019-0540), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.