CVE-2020-1583
Microsoft Word Information Disclosure Vulnerability
No known exploitation. EPSS puts it in the 92nd percentile. A vendor fix is available.
What to do
The vendor has published a fix. Version details are below where the sources state them.
What it is
From the CVE record
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.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
4.9% chance of exploitation activity in the next 30 days, which ranks it in the 92nd percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
6 events over 2138 days, from the signal feeds we watch.
- OpenVAS check added
- EPSS band changemoderate → low
- Patch availablerecord updated
- Publishedweakness classified
Affected products
- Microsoft SharePoint Enterprise Server 2016Enterprise Software / itsm-monitoring
- Microsoft SharePoint Enterprise Server 2013 Service Pack 1Enterprise Software
- Microsoft SharePoint Server 2019Enterprise Software / itsm-monitoring
- Microsoft Office 2010 Service Pack 2Consumer Software / productivity
- Microsoft Office 2019 for MacConsumer Software / productivity
- Microsoft Office Online ServerOperating Systems
- Microsoft 365 Apps for EnterpriseConsumer Software / productivity
- Microsoft Word 2016Consumer Software / productivity
And 29 more affected products. See all after sign-in
Technical detail
CVSS 3.1 vector
Open in the CVSS calculatorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Scored 8.8 by NVD.
How it is reached
- Attack Vector NetworkExploitable remotely over the network without any special conditions
- Attack Complexity LowNo special conditions — the attack can be reliably reproduced
- Privileges Required NoneNo authentication required — anyone can exploit this
- User Interaction RequiredA user must click a link, open a file, or perform some action
Scope
- Scope UnchangedImpact is limited to the vulnerable component itself
Impact if exploited
- Confidentiality HighTotal information disclosure — all data in the component is compromised
- Integrity HighTotal loss of integrity — attacker can modify any data in the component
- Availability HighTotal denial of service — the component is completely unavailable
Weaknesses
Sources
References in the record
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1583
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1583&
- vuldb.com/?id.159569&
And 1 more reference. See all after sign-in
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