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CVE-2018-20551

22
FAUCET Score

CVE-2018-20551 is a denial-of-service vulnerability affecting Poppler 0.72.0 and related products like Canonical Ubuntu Linux. It stems from an assertion failure in the AnnotRichMedia class when processing invalid rich media annotation assets. With a CVSS score of 6.5 (Medium), this vulnerability can be triggered remotely with low attack complexity, leading to a denial of service without impacting confidentiality or integrity. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
0.72.0CPE matchmatch criteria
cpe:2.3:a:freedesktop:poppler:0.72.0:*:*:*:*:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
16.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
18.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
18.10CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.81%
Probability of exploitation in next 30 days
EPSS Percentile
76.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0181 is in the 88th percentile among its peer group of 26,234 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: poppler-0:0.66.0-11.el8_0.12
View patch

Vendor Advisories (1)

redhatCVE-2018-20551Low

poppler: reachable Object::getString assertion in AnnotRichMedia class in Annot.c

Dec 26, 2018

References

access.redhat.com / errata/RHSA-2019:2713
gitlab.freedesktop.org / poppler/poppler/issues/703
ExploitThird Party Advisory
gitlab.freedesktop.org / poppler/poppler/merge_requests/146
PatchThird Party Advisory
usn.ubuntu.com / 3886-1
Third Party Advisory