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CVE-2020-11866

26
FAUCET Score

CVE-2020-11866 is a use-after-free vulnerability in libEMF (aka ECMA-234 Metafile Library) versions through 1.0.11, impacting various Fedora and openSUSE distributions. It carries a CVSS score of 7.8 (High), indicating a local attack vector requiring user interaction, but with high confidentiality, integrity, and availability impacts. Despite its severity, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.0.11CPE matchmatch criteria
cpe:2.3:a:libemf_project:libemf:*:*:*:*:*:*:*:*
31CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
15.1CPE matchmatch criteria
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.32%
Probability of exploitation in next 30 days
EPSS Percentile
67.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0132 is in the 65th percentile among its peer group of 11,617 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2020-11866Moderate

libEMF: allows a use-after-free

May 11, 2020

References

lists.opensuse.org / opensuse-security-announce/2020-06/msg00036.html
Third Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/2DFYDSKWFM2R5NKZOO2IN6X7SM3T2PWL
sourceforge.net / p/libemf/code/commit_browser
Third Party Advisory
sourceforge.net / p/libemf/mailman/libemf-devel
Third Party Advisory
sourceforge.net / p/libemf/news/2020/05/re-release-of-libemf-1012
PatchRelease NotesThird Party Advisory