CVE-2018-6871

Libreoffice vulnerability

CVSS

9.8

EPSS

22.8%

EPSS pct

97th

Exploited

No known

LibreOffice before 5.4.5 and 6.x before 6.0.1 allows remote attackers to read arbitrary files via =WEBSERVICE calls in a document, which use the COM.MICROSOFT.WEBSERVICE function.

Affected vendor

Libreoffice

Affected product

Libreoffice

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Published

2018-02-09

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 22.8% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2018-6871

Confirm whether Libreoffice Libreoffice is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2018-6871.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-6871

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2018-6871 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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