CVE-2018-8161
Exploitation likely. EPSS gives it a 22% chance of exploitation in the next 30 days. 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
A remote code execution vulnerability exists in Microsoft Office software when the software fails to properly handle objects in memory, aka "Microsoft Office Remote Code Execution Vulnerability." This affects Microsoft Word, Word, Microsoft Office, Microsoft SharePoint. This CVE ID is unique from CVE-2018-8157, CVE-2018-8158.
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
22% chance of exploitation activity in the next 30 days, which ranks it in the 98th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
5 events over 2969 days, from the signal feeds we watch.
- OpenVAS check added
- Patch availablerecord updated
- Publishedweakness classified
Affected products
- Microsoft WordConsumer Software / productivity
- WordConsumer Software / productivity
- Microsoft Office 2010 Service Pack 2Consumer Software / productivity
- Microsoft SharePointEnterprise Software / document-mgmt
- office web appsOperating Systems / windows
- sharepoint serverEnterprise Software / collaboration-groupware
- Microsoft SharePoint ServerEnterprise Software / collaboration-groupware
- Microsoft SharePoint Server 2016Enterprise Software / document-mgmt
And 9 more affected products. See all after sign-in
Technical detail
CVSS 3.0 vector
Open in the CVSS calculatorCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Scored 7.8 by NVD.
How it is reached
- Attack Vector LocalRequires local access to the vulnerable system (e.g. local login, malicious file)
- 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-2018-8161
- securityfocus.com/bid/104052
- securitytracker.com/id/1040853
And 2 more references. See all after sign-in
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