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CVE-2018-16646

24
FAUCET Score

CVE-2018-16646 describes a denial-of-service vulnerability in Poppler 0.68.0, affecting various Canonical, Debian, and Freedesktop distributions. A crafted file can trigger infinite recursion in the Parser::getObj() function, leading to a system crash. With a CVSS score of 6.5 (Medium), this vulnerability can be exploited remotely with low attack complexity, requiring user interaction. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
0.68.0CPE matchmatch criteria
cpe:2.3:a:freedesktop:poppler:0.68.0:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
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:*:*:*

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
2.88%
Probability of exploitation in next 30 days
EPSS Percentile
85.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0288 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 nvd_reference
View patch
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
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-2018-16646Low

poppler: infinite recursion in Parser::getObj function in Parser.cc

Aug 28, 2018

References

access.redhat.com / errata/RHSA-2019:2022
bugzilla.redhat.com / show_bug.cgi
ExploitIssue TrackingPatchThird Party Advisory
lists.debian.org / debian-lts-announce/2018/10/msg00024.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2018/11/msg00040.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2018/12/msg00004.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2020/07/msg00018.html
usn.ubuntu.com / 3837-1
Third Party Advisory
usn.ubuntu.com / 3837-2
Third Party Advisory