Out-of-bounds Read in Microsoft Office 2016 For Mac
CVE-2020-16855
<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>
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.044 (91.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 91.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.044 · newest: 0.044 · change: 0.000
Affected products
- Microsoft Office 2016 For Mac — versions 16.0.0
- Microsoft Office 2019 For Mac — versions 16.0.0
- Microsoft Office — versions 2016, 2019
Weakness classification (CWE)
Public proof-of-concept exploits
References
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16855 (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-16855?
- CVE-2020-16855 is a medium-severity vulnerability in Microsoft Office 2016 For Mac, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2020-09-11.
- How severe is CVE-2020-16855?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2020-16855 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.