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-2018-20846

22
FAUCET Score

CVE-2018-20846 describes out-of-bounds access vulnerabilities within the OpenJPEG library (versions through 2.3.0), specifically in functions related to image processing, which could lead to a denial of service. This vulnerability has a CVSS v3.1 score of 6.5 (Medium), indicating it can be exploited remotely with low attack complexity, requiring user interaction, and resulting in high availability impact. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.3.0CPE matchmatch criteria
cpe:2.3:a:uclouvain:openjpeg:*:*:*:*:*:*:*:*

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
2.17%
Probability of exploitation in next 30 days
EPSS Percentile
80.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0217 is in the 90th 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 (4)

github_advisorypatch availablevia nvd_reference
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: openjpeg
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: openjpeg2
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: openjpeg2

Vendor Advisories (1)

redhatCVE-2018-20846Moderate

openjpeg: out-of-bounds read in functions pi_next_lrcp, pi_next_rlcp, pi_next_rpcl, pi_next_pcrl, pi_next_rpcl, and pi_next_cprl in openmj2/pi.c leads to denial of service

Jun 26, 2019

References

github.com / uclouvain/openjpeg/pull/1168/commits/c277159986c80142180fbe5efb256bbf3bdf3edc
Patch
securityfocus.com / bid/108921
Broken LinkThird Party AdvisoryVDB Entry