Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2018-20650

23
FAUCET Score

CVE-2018-20650 describes a denial-of-service vulnerability in Poppler 0.72.0, specifically impacting canonical, debian, freedesktop, and redhat distributions. An attacker can trigger an assertion failure in the Object::dictLookup function by providing a specially crafted PDF file, due to a missing data type check when handling FileSpec objects. This vulnerability has a CVSS score of 6.5 (Medium), indicating it can be exploited remotely with low attack complexity, requiring user interaction, and leading to high availability impact. There is no evidence of active exploitation, no public exploit code available (Metasploit, Nuclei, ExploitDB), and minimal community discussion or media coverage, suggesting a low current threat level.

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: 3.1

6.5MEDIUM

CVSS:3.1/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
3.1

Exploit Intelligence

EPSS Score
2.68%
Probability of exploitation in next 30 days
EPSS Percentile
84.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0268 is in the 93rd percentile among its peer group of 26,236 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 (6)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: evince-0:3.28.2-8.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: okular-0:4.10.5-7.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: poppler-0:0.26.5-38.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: poppler-0:0.66.0-11.el8_0.12
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: poppler
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: poppler

Vendor Advisories (1)

redhatCVE-2018-20650Low

poppler: reachable Object::dictLookup assertion in FileSpec class in FileSpec.cc

Dec 28, 2018

References

access.redhat.com / errata/RHSA-2019:2022
Third Party Advisory
access.redhat.com / errata/RHSA-2019:2713
Third Party Advisory
gitlab.freedesktop.org / poppler/poppler/commit/de0c0b8324e776f0b851485e0fc9622fc35695b7
PatchThird Party Advisory
gitlab.freedesktop.org / poppler/poppler/issues/704
Issue TrackingPatchThird Party Advisory
lists.debian.org / debian-lts-announce/2019/09/msg00033.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2020/11/msg00014.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2022/09/msg00030.html
Mailing ListThird Party Advisory
usn.ubuntu.com / 3865-1
Third Party Advisory
securityfocus.com / bid/106459
Third Party AdvisoryVDB Entry