CVE-2020-16855: microsoft microsoft office 2016 for mac Out-of-bounds Read
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.
Timeline
- 11-09-2020PublishedVulnerability first disclosed.
- 04-08-2024Last 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- NVDNIST5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
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
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Microsoft3 products
- microsoft office 2016 for mac≥ 16.0.0, < publication
- microsoft office 2019 for mac≥ 16.0.0, < publication
- officeEOL2016 | 2019
1 vendor · 3 products
References
1 links- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16855X Refsource MISCPatchVendor Advisory