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CVE-2020-12802

21
FAUCET Score

CVE-2020-12802 describes a vulnerability in LibreOffice versions prior to 6.4.4 where remote graphic links in DOCX documents bypassed the "stealth mode" protection, allowing unauthorized retrieval of remote resources even when this security feature was enabled. This medium-severity vulnerability (CVSS 5.3) has a network attack vector and low complexity, potentially leading to information disclosure (C:L). There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 6.4.4CPE matchmatch criteria
cpe:2.3:a:libreoffice:libreoffice:*:*:*:*:*:*:*:*
31CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
15.1CPE matchmatch criteria
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
15.2CPE matchmatch criteria
cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.94%
Probability of exploitation in next 30 days
EPSS Percentile
78.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0194 is in the 66th percentile among its peer group of 23,725 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (6)

asteriskpatch availablevia llm_extracted
Fixed in: 6.4.4
View patch
check_pointpatch availablevia llm_extracted
Fixed in: 6.4.4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: libcmis-0:0.5.2-1.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: liborcus-0:0.14.1-1.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: libreoffice-1:6.3.6.2-3.el8
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: libreoffice

Vendor Advisories (3)

redhatCVE-2020-12802Low

libreoffice: 'stealth mode' remote resource restrictions bypass

Jun 8, 2020
asteriskllm-asterisk-91e4c3520f644194

remote graphics contained in docx format retrieved in 'stealth mode'

check_pointllm-check_point-cc9dfa2763e0d550

remote graphics contained in docx format retrieved in 'stealth mode'

References

lists.opensuse.org / opensuse-security-announce/2020-08/msg00042.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2020-08/msg00058.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2023/12/msg00026.html
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/PQIBAKXD7VO5IGBD7ZMH3GGBNR5R2IOA
libreoffice.org / about-us/security/advisories/CVE-2020-12802
Vendor Advisory