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Public proof of conceptFix available

CVE-2019-9851

A public proof of concept exists; no exploitation attested.

  • Published2019-08-15
  • Fixed in6.2.6
  • WeaknessCWE-20

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2019-08-21Exploit-DB entryExploit-DB

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2019-9851?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2019-9851?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Libreoffice
BranchAffectedFixed in
6.2< 6.2.66.2.6
Canonical ubuntu linux
BranchAffectedFixed in
16.4= 16.04no fix published
18.4= 18.04no fix published
19.4= 19.04no fix published
Debian debian linux
BranchAffectedFixed in
8.0= 8.0no fix published
9.0= 9.0no fix published
10.0= 10.0no fix published

2 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • libreofficeUbuntu:18.04:LTSall versions · fixed in 1:6.0.7-0ubuntu0.18.04.9
  • libreofficeUbuntu:16.04:LTSall versions · fixed in 1:5.1.6~rc2-0ubuntu1~xenial9
  • libreofficeSUSE:Linux Enterprise Workstation Extension 15 SP1all versions · fixed in 6.2.7.1-8.10.1
  • libreofficeSUSE:Linux Enterprise Workstation Extension 15all versions · fixed in 6.2.6.2-3.21.1
  • libreofficeSUSE:Linux Enterprise Workstation Extension 12 SP4all versions · fixed in 6.2.7.1-43.56.3
  • libreofficeSUSE:Linux Enterprise Software Development Kit 12 SP4all versions · fixed in 6.2.7.1-43.56.3
  • libreofficeSUSE:Linux Enterprise Desktop 12 SP4all versions · fixed in 6.2.7.1-43.56.3
  • libreofficeRed Hat:enterprise_linux:8::appstreamall versions · fixed in 1:6.0.6.1-20.el8and 191 other packages

30 more package ranges on OSV.dev

Vendor advisories

  • CVE-2019-9851 Red Hat Product Security1,530 products fixed · 133 known affected

    libreoffice: LibreLogo global-event script execution

    autocorr-af as a component of Red Hat Enterprise Linux 6 · autocorr-bg as a component of Red Hat Enterprise Linux 6 · autocorr-ca as a component of Red Hat Enterprise Linux 6 · +130 more

  • RHSA-2020:1598 Red Hat Product Security322 products fixed

    Red Hat Security Advisory: libreoffice security and bug fix update

  • RHSA-2020:1151 Red Hat Product Security426 products fixed

    Red Hat Security Advisory: libreoffice security and bug fix update

Full record on NVD

Fix

  1. Update Libreoffice to 6.2.6
  2. Vendor fix Red Hat Product Security RHSA-2020:1598 · 322 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 All running instances of LibreOffice applications must be restarted for this update to take effect.
  3. No fix planned, says the vendor Red Hat Product Security CVE-2019-9851 · 133 productsOut of support scope

Advisories and patches

Detection

read 2026-11-02 22:42 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
EDB-47298
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
1 moduleexploit/multi/fileformat/libreoffice_logo_execrank: normalModule metadata: Metasploit Framework, © Rapid7, Inc., BSD-3-Clause.
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2019-08-15
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-2rm2-3r73-2vfr

Frequently asked questions

What is CVE-2019-9851?

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.

Is CVE-2019-9851 actively exploited?

Active exploitation of CVE-2019-9851 has not been confirmed. Its EPSS score was 77.8% on 2026-11-03, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-9851?

CVE-2019-9851 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record