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CVE Record

CVE-2020-12802: remote graphics contained in docx format retrieved in 'stealth mode'

LibreOffice has a 'stealth mode' in which only documents from locations deemed 'trusted' are allowed to retrieve remote resources. This mode is not the default mode, but can be enabled by users who want to disable LibreOffice's ability to include remote resources within a document. A flaw existed where remote graphic links loaded from docx documents were omitted from this protection prior to version 6.4.4. This issue affects: The Document Foundation LibreOffice versions prior to 6.4.4.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

CVE-2020-12802 is a LibreOffice privacy protection bypass. Users who enabled LibreOffice's non-default “stealth mode” expected untrusted documents to be blocked from loading remote resources. Before LibreOffice 6.4.4, DOCX files with remote graphics could still retrieve those graphics, potentially revealing document-opening activity or related network metadata. Exposure is most likely on endpoints running LibreOffice before 6.4.4 where users rely on stealth mode or open externally supplied DOCX documents. The practical risk is privacy and metadata leakage through remote resource retrieval, not confirmed system compromise. Treat this as a targeted privacy and trust-control issue, not an emergency remote-code-execution event based on available evidence. Prioritize patching managed workstations that open external documents or handle sensitive matters where document-open tracking would be meaningful. Mitigation focus: Upgrade LibreOffice to version 6.4.4 or a vendor-fixed package.; Apply relevant Fedora, openSUSE, Debian, or vendor security updates.; Limit opening untrusted DOCX files on affected LibreOffice endpoints..

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CWE-200: Information exposure and cloud metadata lookup

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CVE-2020-12802 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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4Source links

CVSS and timeline data

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Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
The Document FoundationLibreOfficeunspecifiedListed
Weakness

CWE details

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CWE-200 · source CWE mapping

Exposure of Sensitive Information to an Unauthorized Actor

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