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Case File

CVE-2019-9851

CRITICAL · CVSS 9.8 EPSS 78.35% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2019-08-15 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. It affects Office. Public exploit code or proof-of-concept references have been detected in its references. Its EPSS score suggests a 78.3% probability of exploitation in the next 30 days.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

External Security References

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2019-9851
Severity
CRITICAL
CVSS
9.8
EPSS
78.35%
Office

Original NVD Description

LibreOffice is typically bundled with LibreLogo, a programmable turtle vector graphics script, which can execute arbitrary python commands contained with the document it is launched from. Protection was added, to address CVE-2019-9848, to block calling LibreLogo from document event script handers, e.g. mouse over. However LibreOffice also has a separate feature where documents can specify that pre-installed scripts can be executed on various global script events such as document-open, etc. In the fixed versions, global script event handlers are validated equivalently to document script event handlers. This issue affects: Document Foundation LibreOffice versions prior to 6.2.6.

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