5.5

CVE-2020-16855: microsoft microsoft office 2016 for mac Out-of-bounds Read

CVSS: 5.5v3.1MediumModified
Published 11-09-2020Last modified 04-08-2024

Vulnerability summary

CVE-2020-16855 is a medium (CVSS 5.5) Out-of-bounds Read vulnerability in microsoft microsoft office 2016 for mac. EPSS estimates a 4.42% chance of exploitation in the next 30 days, higher than 91.2% 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
4.42%
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. 11-09-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

<p>An information disclosure vulnerability exists when Microsoft Office software reads out of bound memory due to an uninitialized variable, which could disclose the contents of memory. An attacker who successfully exploited the vulnerability could view out of bound memory.</p> <p>Exploitation of the vulnerability requires that a user open a specially crafted file with an affected version of Microsoft Office software.</p> <p>The security update addresses the vulnerability by properly initializing the affected variable.</p>

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

4.42%

Chance of exploitation in the next 30 days

Percentile

91%

Versus all other CVEs

30-day change

0.00 pp

From 4.42% on 20-09-2026

20-09-202620-10-2026
EPSS score
4.42%

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

Microsoft3 products

1 vendor · 3 products

References

1 links