CVE-2019-9854
7.8 · HIGHOverview
CVE-2019-9854 is a high-severity vulnerability affecting libreoffice libreoffice. It was published on September 6, 2019 and has a CVSS 3.1 base score of 7.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical Description
LibreOffice has a feature where documents can specify that pre-installed macros can be executed on various script events such as mouse-over, document-open etc. Access is intended to be restricted to scripts under the share/Scripts/python, user/Scripts/python sub-directories of the LibreOffice install. Protection was added, to address CVE-2019-9852, to avoid a directory traversal attack where scripts in arbitrary locations on the file system could be executed by employing a URL encoding attack to defeat the path verification step. However this protection could be bypassed by taking advantage of a flaw in how LibreOffice assembled the final script URL location directly from components of the passed in path as opposed to solely from the sanitized output of the path verification step. This issue affects: Document Foundation LibreOffice 6.2 versions prior to 6.2.7; 6.3 versions prior to 6.3.1.
Remediation
Check the references section for vendor advisories and patches from libreoffice. Update libreoffice to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| libreoffice | libreoffice | >= 6.2.0, < 6.2.7 | Affected |
References
Frequently Asked Questions
What is CVE-2019-9854?
CVE-2019-9854 is a high-severity vulnerability affecting libreoffice libreoffice. It was published on September 6, 2019 and has a CVSS 3.1 base score of 7.8 (HIGH).
How severe is CVE-2019-9854?
This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2019-9854?
Check the references section for vendor advisories and patches from libreoffice. Update libreoffice to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2019-9854?
CyberStrike's AI-powered security agents can automatically detect CVE-2019-9854 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
AI-driven PR review catches vulnerable dependencies before they ship.
Browser-based exploitation validates findings with real proof-of-concept.
Related HIGH CVEs from 2019
View all →An exploitable SQL injection vulnerability exist in YouPHPTube 7.7. When the "VideoTags" plugin is e
A file-upload vulnerability exists in Rukovoditel 2.3.1. index.php?module=configuration/save allows
A use-after-free issue was found in the way the Linux kernel's KVM hypervisor processed posted inter
An error-based SQL injection vulnerability in product/card.php in Dolibarr version 8.0.2 allows remo
SQL injection vulnerability in user/card.php in Dolibarr version 8.0.2 allows remote authenticated u
SAP Enterprise Financial Services (fixed in SAPSCORE 1.13, 1.14, 1.15; S4CORE 1.01, 1.02, 1.03; EA-F
Under some circumstances, masterdata maintenance in SAP BW/4HANA (fixed in DW4CORE version 1.0 (SP08
A remote code execution vulnerability exists in the way that the MSHTML engine inproperly validates
An elevation of privilege exists in Windows COM Desktop Broker, aka "Windows COM Elevation of Privil
An elevation of privilege vulnerability exists in Microsoft Edge Browser Broker COM object, aka "Mic
A remote code execution vulnerability exists in Microsoft Word software when it fails to properly ha
D-Link DIR-822 C1 before v3.11B01Beta, DIR-822-US C1 before v3.11B01Beta, DIR-850L A* before v1.21B0