CVE-2020-12802 | remote graphics contained in docx format retrieved in 'stealth mode'

LibreOffice has a 'stealth mode' in which only documents from locations deemed 'trusted' are allowed to retrieve remote resources. This mode is not the default mode, but can be enabled by users who want to disable LibreOffice's ability to include remote resources within a document. A flaw existed where remote graphic links loaded from docx documents were omitted from this protection prior to version 6.4.4. This issue affects: The Document Foundation LibreOffice versions prior to 6.4.4.

Published: 2020-06-08 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-12802 is rated Moderate Risk (42.3/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.40%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2020-12802

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-03-16 0.47% 0.40% -0.07%
2 2025-11-21 0.38% 0.47% +0.10%
3 2025-11-18 — 0.38% —

Full EPSS history (15 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-12802

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 1.4 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2020-12802

OS Trackers for CVE-2020-12802

vendor priority summary link
alpine — CVE-2020-12802: 1 source package rows (libreoffice); 15 state rows across 7 repos (3.17-community, 3.18-community, 3.19-community, 3.20-community, 3.21-community, 3.22-community, edge-community); fixed 7, open 8. https://security.alpinelinux.org/vuln/CVE-2020-12802
debian low CVE-2020-12802 low priority: Debian including 1 source packages (libreoffice), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2020-12802
redhat low — https://access.redhat.com/security/cve/CVE-2020-12802
suse low CVE-2020-12802 severity low: SUSE including 848 source package names (libreoffice-6.4.5.2-13.3.1, libreoffice-6.4.5.2-43.68.1, …), 938 product×package rows across 11 product lines (SUSE Linux Enterprise Software Development Kit 12 SP5, SUSE Linux Enterprise Workstation Extension 12 SP5, … (11 product lines)): Fixed 938. https://www.suse.com/security/cve/CVE-2020-12802/
ubuntu low CVE-2020-12802 low priority: Ubuntu including 1 source packages (libreoffice), 11 status rows across 11 suites (bionic, eoan, focal, groovy, hirsute, impish, jammy, kinetic, trusty, upstream, xenial): released 7, ignored 3, DNE 1. https://ubuntu.com/security/CVE-2020-12802

Affected software / configurations for CVE-2020-12802

Vendor Product Version Raw CPE
libreoffice libreoffice < 6.4.4 cpe:2.3:a:libreoffice:libreoffice:*:*:*:*:*:*:*:*
fedoraproject fedora 31 cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
opensuse leap 15.1 cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
opensuse leap 15.2 cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*

References for CVE-2020-12802

cvelogic Threat Intelligence