CVE-2019-1445

Name: CVE-2019-1445
Creator: NVD / NIST
Published: 2019-11-12T19:15:15.723+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.75%

Last modified Jun 17, 2026

CVE-2019-1445 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. A spoofing vulnerability exists when Office Online does not validate origin in cross-origin communications handlers correctly, aka 'Microsoft Office Online Spoofing Vulnerability'. This CVE ID is unique from CVE-2019-1447.. EPSS estimates a 0.75% chance of exploitation in the next 30 days.

Description

A spoofing vulnerability exists when Office Online does not validate origin in cross-origin communications handlers correctly, aka 'Microsoft Office Online Spoofing Vulnerability'. This CVE ID is unique from CVE-2019-1447.

Metrics

CVSS 3.1

5.4/10

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

EPSS Probability

0.75%

50.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-346

Affected Software

Vendor	Product	Versions
Microsoft	Office Online Server	All versions

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1445Patch, Vendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1445Patch, Vendor Advisory

Timeline

Published: Nov 12, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-1445?

How severe is CVE-2019-1445?

CVE-2019-1445 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.75% probability of exploitation in the next 30 days.

How do I fix CVE-2019-1445?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-1445?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST