CVE-2021-28456 — MEDIUM (5.5)

Vulnerability Description

Microsoft Excel Information Disclosure Vulnerability

CVSS Score

5.5

MEDIUM

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Microsoft	365 Apps	-
Microsoft	Excel	2010
Microsoft	Office	2019
Microsoft	Office Online Server	-
Microsoft	Office Web Apps Server	2013

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-2845PatchVendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-2845PatchVendor Advisory

FAQ

What is CVE-2021-28456?

CVE-2021-28456 is a vulnerability with a CVSS score of 5.5 (MEDIUM). Microsoft Excel Information Disclosure Vulnerability

How severe is CVE-2021-28456?

CVE-2021-28456 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-28456?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft 365 Apps, Microsoft Excel, Microsoft Office, Microsoft Office Online Server, Microsoft Office Web Apps Server.