5.5

CVE-2021-28456: microsoft 365_apps

CVSS: 5.5v3.1MediumModified
Published 13-04-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-28456 is a medium (CVSS 5.5) vulnerability in microsoft 365_apps. EPSS estimates a 3.67% chance of exploitation in the next 30 days, higher than 89.5% of scored vulnerabilities.

Overall risk
23/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
3.67%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 13-04-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

Microsoft Excel Information Disclosure Vulnerability

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

3.67%

Chance of exploitation in the next 30 days

Percentile

90%

Versus all other CVEs

30-day change

0.00 pp

From 3.67% on 18-09-2026

18-09-202618-10-2026
EPSS score
3.67%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Microsoft13 products

1 vendor · 13 products

References

1 links