CVE-2019-9848LibreOffice Code Injection
LibreOffice has a feature where documents can specify that pre-installed scripts can be executed on various document events such as mouse-over, etc.
Published Jul 17, 2019 · Updated Aug 4, 2026 · Also known as DEBIAN-CVE-2019-9848, DLA-1947-1, DSA-4483-1, SUSE-SU-2019:2231-1, SUSE-SU-2019:2401-1, SUSE-SU-2019:2402-1, UBUNTU-CVE-2019-9848, USN-4063-1
Key Facts
Patch immediately- CVE-2019-9848 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting LibreOffice, Ubuntu Linux (Canonical), Debian Linux and 22 more products.
- It is not listed in any known-exploited vulnerabilities catalog. A public exploit is reported by tracking sources, but no code link is listed yet.
- EPSS estimates a 29% probability of exploitation in the next 30 days.
- Fixed versions are available, including autocorr-af 1:5.3.6.1-24.0.1.el7, autocorr-bg 1:5.3.6.1-24.0.1.el7, autocorr-ca 1:5.3.6.1-24.0.1.el7.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Scores
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
29%
Higher than 98.1% of all scored CVEs
Exploit maturity
Weaponized
ATLAS score
56/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Weaponized
Public exploit code
1
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Advisories And Exploit References
- advisoryhttps://security-tracker.debian.org/tracker/CVE-2019-9848
- advisoryhttps://ubuntu.com/security/CVE-2019-9848
- advisoryhttps://www.cve.org/CVERecord?id=CVE-2019-9848
- advisoryhttps://www.libreoffice.org/about-us/security/advisories/cve-2019-9848/
- advisoryhttps://www.libreoffice.org/about-us/security/advisories/CVE-2019-9848
- advisoryopenSUSE-SU-2019:2057
Description
LibreOffice has a feature where documents can specify that pre-installed scripts can be executed on various document events such as mouse-over, etc. LibreOffice is typically also bundled with LibreLogo, a programmable turtle vector graphics script, which can be manipulated into executing arbitrary python commands. By using the document event feature to trigger LibreLogo to execute python contained within a document a malicious document could be constructed which would execute arbitrary python commands silently without warning.
In the fixed versions, LibreLogo cannot be called from a document event handler. This issue affects: Document Foundation LibreOffice versions prior to 6.2.5.
Affected Products
933 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| LibreOfficeLibreoffice | >= unspecified | 6.2.5 |
| Ubuntu LinuxCanonical | 16.04, 18.04, 19.04 | n/a |
| Debian LinuxDebian | 8.0 | n/a |
| FedoraFedoraproject | 29, 30 | n/a |
| LeapOpensuse | 15.0, 15.1 | n/a |
Patched Releases
autocorr-af
1:5.3.6.1-24.0.1.el7
autocorr-bg
1:5.3.6.1-24.0.1.el7
autocorr-ca
1:5.3.6.1-24.0.1.el7
autocorr-cs
1:5.3.6.1-24.0.1.el7
autocorr-da
1:5.3.6.1-24.0.1.el7
autocorr-de
1:5.3.6.1-24.0.1.el7
autocorr-en
1:5.3.6.1-24.0.1.el7
autocorr-es
1:5.3.6.1-24.0.1.el7
autocorr-fa
1:5.3.6.1-24.0.1.el7
autocorr-fi
1:5.3.6.1-24.0.1.el7
autocorr-fr
1:5.3.6.1-24.0.1.el7
autocorr-ga
1:5.3.6.1-24.0.1.el7
autocorr-hr
1:5.3.6.1-24.0.1.el7
autocorr-hu
1:5.3.6.1-24.0.1.el7
autocorr-is
1:5.3.6.1-24.0.1.el7
autocorr-it
1:5.3.6.1-24.0.1.el7
autocorr-ja
1:5.3.6.1-24.0.1.el7
autocorr-ko
1:5.3.6.1-24.0.1.el7
autocorr-lb
1:5.3.6.1-24.0.1.el7
autocorr-lt
1:5.3.6.1-24.0.1.el7
autocorr-mn
1:5.3.6.1-24.0.1.el7
autocorr-nl
1:5.3.6.1-24.0.1.el7
autocorr-pl
1:5.3.6.1-24.0.1.el7
autocorr-pt
1:5.3.6.1-24.0.1.el7
autocorr-ro
1:5.3.6.1-24.0.1.el7
Timeline
Publicly disclosed
Jul 17, 2019
Last updated
Aug 4, 2026
Weakness Type
- CWE-20 Improper Input Validation
- CWE-94 Improper Control of Generation of Code ('Code Injection')
References
- advisorysecurity-tracker.debian.org · CVE-2019-9848
- advisoryubuntu.com · CVE-2019-9848
- advisorycve.org · CVERecord
- advisorylibreoffice.org · CVE-2019-9848
- advisorylibreoffice.org · CVE-2019-9848
FAQ
Common Questions.
LibreOffice has a feature where documents can specify that pre-installed scripts can be executed on various document events such as mouse-over, etc.
Affected: LibreOffice versions >= unspecified; Ubuntu Linux (Canonical) versions 16.04, 18.04, 19.04; Debian Linux versions 8.0, among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
A public exploit is reported by tracking sources, but no code link is listed yet.
Fixed versions are available, including autocorr-af 1:5.3.6.1-24.0.1.el7, autocorr-bg 1:5.3.6.1-24.0.1.el7, autocorr-ca 1:5.3.6.1-24.0.1.el7.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Is CVE-2019-9848 On Your Attack Surface?
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