CVE-2019-1109

Description

A spoofing vulnerability exists when Microsoft Office Javascript does not check the validity of the web page making a request to Office documents.An attacker who successfully exploited this vulnerability could read or write information in Office documents.The security update addresses the vulnerability by correcting the way that Microsoft Office Javascript verifies trusted web pages., aka 'Microsoft Office Spoofing Vulnerability'.

Category

9.1
CVSS
Severity: Critical
CVSS 3.0 •
CVSS 2.0 •
EPSS 11.65% Top 10%
Vendor Advisory microsoft.com
Affected: Microsoft Microsoft Office
Affected: Microsoft Office 365 ProPlus
Published at:
Updated at:

References

Link Tags
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1109 patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2019-1109?
CVE-2019-1109 has been scored as a critical severity vulnerability.
How to fix CVE-2019-1109?
To fix CVE-2019-1109, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-1109 being actively exploited in the wild?
It is possible that CVE-2019-1109 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~12% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2019-1109?
CVE-2019-1109 affects Microsoft Microsoft Office, Microsoft Office 365 ProPlus.
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