5.5

CVE-2020-1493: microsoft 365_apps

CVSS: 5.5v3.1MediumModified
Published 17-08-2020Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-1493 is a medium (CVSS 5.5) vulnerability in microsoft 365_apps. EPSS estimates a 7.30% chance of exploitation in the next 30 days, higher than 94.3% 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
7.30%
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. 17-08-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

An information disclosure vulnerability exists when attaching files to Outlook messages. This vulnerability could potentially allow users to share attached files such that they are accessible by anonymous users where they should be restricted to specific users. To exploit this vulnerability, an attacker would have to attach a file as a link to an email. The email could then be shared with individuals that should not have access to the files, ignoring the default organizational setting. The security update addresses the vulnerability by correcting how Outlook handles file attachment links.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

7.30%

Chance of exploitation in the next 30 days

Percentile

94%

Versus all other CVEs

30-day change

0.00 pp

From 7.30% on 18-09-2026

18-09-202618-10-2026
EPSS score
7.30%

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

Affected systems

Microsoft8 products

1 vendor · 8 products

References

2 links