CVE-2026-42832

Name: CVE-2026-42832
Creator: NVD / NIST
Published: 2026-05-12T18:17:25.8+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.22%

Last modified Jun 17, 2026

CVE-2026-42832 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. Improper access control in Microsoft Office allows an unauthorized attacker to perform spoofing locally.. EPSS estimates a 0.22% chance of exploitation in the next 30 days.

Description

Improper access control in Microsoft Office allows an unauthorized attacker to perform spoofing locally.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.22%

12.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-284

Affected Software

Vendor	Product	Versions
Microsoft	Excel	< 16.0.19822.20190
Microsoft	Office	2024
Microsoft	Office Long Term Servicing Channel	2021
Microsoft	Word	< 16.0.19822.20190

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42832Vendor Advisory

Timeline

Published: May 12, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-42832?

Improper access control in Microsoft Office allows an unauthorized attacker to perform spoofing locally.

How severe is CVE-2026-42832?

CVE-2026-42832 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.22% probability of exploitation in the next 30 days.

How do I fix CVE-2026-42832?

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-2026-42832?

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

Scan your code now

Source: NVD / NIST