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CVE-2019-9851· NVD / CVE Program· CNA Document Fdn.

LibreLogo global-event script execution

Noroxi assessment

Priority: This week (action score 62/100)

  • A ready-made attack module is public (Metasploit); exploiting it takes no special expertise.
  • Public proof-of-concept code exists (Exploit-DB); there is no record of exploitation in the wild.
  • Probability of exploitation in the next 30 days: 77.8% (FIRST EPSS); higher than 99.5% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: libreoffice (Debian:10) 1:6.1.5-3+deb10u3; libreoffice (Debian:12) 1:6.3.0-1; libreoffice (Debian:8) 1:4.3.3-2+deb8u13.

Don’t wait for the next maintenance window. Upgrade to libreoffice (Debian:10) 1:6.1.5-3+deb10u3; libreoffice (Debian:12) 1:6.3.0-1; libreoffice (Debian:8) 1:4.3.3-2+deb8u13 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

CriticalCVSS 9.8 · v3.1—Weaponized Fix available
Published
Aug 15, 2019
Updated
Jun 16, 2026
EPSS
77.8% · 99th percentile

Report tools

JSON

Action score

62

This week

Don’t wait for the next maintenance window.

CVSS
39 / 40 · 9.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
23 / 30 · 77.8%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • Weaponized exploit exists
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2019-9851

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
libreofficelibreoffice
canonicalubuntu linux
debiandebian linux
fedoraprojectfedora
opensuseleap

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • canonical ubuntu linux16.04
  • canonical ubuntu linux18.04
  • canonical ubuntu linux19.04
  • debian debian linux10.0
  • debian debian linux8.0
  • debian debian linux9.0
  • fedoraproject fedora29
  • libreoffice libreofficebefore 6.2.6
  • opensuse leap15.0
  • opensuse leap15.1

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Document Fdn.). Independent of NVD's CPE analysis and usually ahead of it.

  • Document Foundation LibreOffice

    • unspecified and later · before 6.2.6affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:10libreofficebefore 1:6.1.5-3+deb10u31:6.1.5-3+deb10u3
Debian:12libreofficebefore 1:6.3.0-11:6.3.0-1
Debian:8libreofficebefore 1:4.3.3-2+deb8u131:4.3.3-2+deb8u13
Debian:9libreofficebefore 1:5.2.7-1+deb9u101:5.2.7-1+deb9u10
openSUSE:Leap 15.0libreofficebefore 6.2.6.2-lp150.2.16.16.2.6.2-lp150.2.16.1
openSUSE:Leap 15.1libreofficebefore 6.2.7.1-lp151.3.6.16.2.7.1-lp151.3.6.1
openSUSE:Tumbleweedlibreofficebefore 7.1.5.2-3.137.1.5.2-3.13
Red Hat:enterprise_linux:7::clientautocorr-afbefore 1:5.3.6.1-24.el71:5.3.6.1-24.el7
Red Hat:enterprise_linux:7::clientautocorr-bgbefore 1:5.3.6.1-24.el71:5.3.6.1-24.el7
Red Hat:enterprise_linux:7::clientautocorr-cabefore 1:5.3.6.1-24.el71:5.3.6.1-24.el7
Red Hat:enterprise_linux:7::clientautocorr-csbefore 1:5.3.6.1-24.el71:5.3.6.1-24.el7
Red Hat:enterprise_linux:7::clientautocorr-dabefore 1:5.3.6.1-24.el71:5.3.6.1-24.el7
Red Hat:enterprise_linux:7::clientautocorr-debefore 1:5.3.6.1-24.el71:5.3.6.1-24.el7
Red Hat:enterprise_linux:7::clientautocorr-enbefore 1:5.3.6.1-24.el71:5.3.6.1-24.el7
Red Hat:enterprise_linux:7::clientautocorr-esbefore 1:5.3.6.1-24.el71:5.3.6.1-24.el7
Red Hat:enterprise_linux:7::clientautocorr-fabefore 1:5.3.6.1-24.el71:5.3.6.1-24.el7
Red Hat:enterprise_linux:7::clientautocorr-fibefore 1:5.3.6.1-24.el71:5.3.6.1-24.el7
Red Hat:enterprise_linux:7::clientautocorr-frbefore 1:5.3.6.1-24.el71:5.3.6.1-24.el7
Red Hat:enterprise_linux:7::clientautocorr-gabefore 1:5.3.6.1-24.el71:5.3.6.1-24.el7
Red Hat:enterprise_linux:7::clientautocorr-hrbefore 1:5.3.6.1-24.el71:5.3.6.1-24.el7
Red Hat:enterprise_linux:7::clientautocorr-hubefore 1:5.3.6.1-24.el71:5.3.6.1-24.el7
Red Hat:enterprise_linux:7::clientautocorr-isbefore 1:5.3.6.1-24.el71:5.3.6.1-24.el7
Red Hat:enterprise_linux:7::clientautocorr-itbefore 1:5.3.6.1-24.el71:5.3.6.1-24.el7
Red Hat:enterprise_linux:7::clientautocorr-jabefore 1:5.3.6.1-24.el71:5.3.6.1-24.el7

+96

Same product

libreoffice: all records

Other highest-scoring records for the same primary product.

  • CVE-2018-16858It was found that libreoffice before versions 6.0.7 and 6.1.3 was vulnerable to a directory traversal attack which could be used to execute
    60This week
  • CVE-2018-10583An information disclosure vulnerability occurs when LibreOffice 6.0.3 and Apache OpenOffice Writer 4.1.5 automatically process and initiate
    60This week
  • CVE-2019-9848LibreOffice has a feature where documents can specify that pre-installed scripts can be executed on various document events such as mouse-ov
    48Plan

Published before and after this one in the same product

  • ← EarlierCVE-2019-9849Jul 17, 2019 · LibreOffice has a 'stealth mode' in which only documents from locations deemed 'trusted' are allowed to retrieve remote resources.
    18Monitor
  • ← EarlierCVE-2019-9850Aug 15, 2019 · Insufficient url validation allowing LibreLogo script execution
    40Plan
  • Later →CVE-2019-9852Aug 15, 2019 · Insufficient URL encoding flaw in allowed script location check
    32Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:libreoffice1:6.3.0-1 · Debian:12Package registry (OSV)
opensuse:libreoffice6.2.6.2-lp150.2.16.1 · openSUSE:Leap 15.0Package registry (OSV)
red hat:autocorr-af1:5.3.6.1-24.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:autocorr-bg1:5.3.6.1-24.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:autocorr-ca1:5.3.6.1-24.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:autocorr-cs1:5.3.6.1-24.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:autocorr-da1:5.3.6.1-24.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:autocorr-de1:5.3.6.1-24.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:autocorr-en1:5.3.6.1-24.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:autocorr-es1:5.3.6.1-24.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:autocorr-fa1:5.3.6.1-24.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:autocorr-fi1:5.3.6.1-24.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:autocorr-fr1:5.3.6.1-24.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:autocorr-ga1:5.3.6.1-24.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
suse:libreoffice6.2.6.2-3.21.1 · SUSE:Linux Enterprise Workstation Extension 15Package registry (OSV)

Exploit status

Weaponized

A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.

Evidence

  • Metasploit module ×1
  • Exploit-DB entry ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Exploit-DB entryremote2019-08-21
Metasploit moduleexploit/multi/fileformat/libreoffice_logo_execLibreOffice Macro Python Code Executionexploit2019-07-16

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Metasploit-31 d
  2. Published
  3. First PoC+5 d
  4. TodayOct 25, 2026+2628 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-20 · Improper Input Validation

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (8 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records