CVE-2020-1583 json
Microsoft Word Information Disclosure Vulnerability
published 2020-08-17 6 y ago modified 2026-06-17 4 mo 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
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 23 mo ago
Exploit prediction
4.91% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).
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
-
portal.msrc.microsoft.com
/en-US/security-guidance/advisory/CVE-2020-1583
patch, vendor-advisory
Sources
- CVE List CVE-2020-1583
- NVD CVE-2020-1583
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