CVE-2023-23391

Name: CVE-2023-23391
Creator: NVD / NIST
Published: 2023-03-14T17:15:12.707+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.64%

Last modified Jun 17, 2026

CVE-2023-23391 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. Office for Android Spoofing Vulnerability. EPSS estimates a 0.64% chance of exploitation in the next 30 days.

Description

Office for Android Spoofing Vulnerability

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.64%

46.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-23

Affected Software

Vendor	Product	Versions
Microsoft	365 Copilot	16.0.16026.20172

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-23391Patch, Vendor Advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-23391Patch, Vendor Advisory

Timeline

Published: Mar 14, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-23391?

Office for Android Spoofing Vulnerability

How severe is CVE-2023-23391?

CVE-2023-23391 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.64% probability of exploitation in the next 30 days.

How do I fix CVE-2023-23391?

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-2023-23391?

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

Scan your code now

Source: NVD / NIST