Skip to content
Fencer Intel
high 8.8

CVE-2020-1583 json

Microsoft Word Information Disclosure Vulnerability

published 6y ago modified 4mo ago also EUVD-2020-12456

cvss
8.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
4.9%
EPSS 4.9% chance of exploitation in 30 days, percentile 92%
public exploits
0
none known

Summary

An information disclosure vulnerability exists when Microsoft Word improperly discloses the contents of its memory. An attacker who exploited the vulnerability could use the information to compromise the user’s computer or data. To exploit the vulnerability, an attacker could craft a special document file and then convince the user to open it. An attacker must know the memory address location where the object was created. The update addresses the vulnerability by changing the way certain Word functions handle objects in memory.

Patch / fix

Is CVE-2020-1583 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
last yr.

Exploit prediction

4.91% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
CNA 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N

Affected products

  • Microsoft Microsoft SharePoint Enterprise Server 2016
  • Microsoft Microsoft SharePoint Enterprise Server 2013 Service Pack 1
  • Microsoft Microsoft SharePoint Server 2019
  • Microsoft Microsoft Office 2019
  • Microsoft Microsoft Office 2019 for Mac
  • Microsoft Microsoft Office Online Server
  • Microsoft Microsoft 365 Apps for Enterprise
  • Microsoft Microsoft Word 2016
  • Microsoft Microsoft Office 2016 for Mac
  • Microsoft Microsoft Office 2010 Service Pack 2
  • Microsoft Microsoft Office Web Apps 2010 Service Pack 2
  • Microsoft Microsoft Office Web Apps 2013 Service Pack 1
  • Microsoft Microsoft SharePoint Server 2010 Service Pack 2
  • Microsoft Microsoft Word 2010 Service Pack 2
  • Microsoft Microsoft Word 2013 Service Pack 1

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.