HIGH

CVE-2019-20421

CVSS v3

7.5

HIGH

EPSS Score

4.3 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

exiv2-docAlmaLinux:8all versions · fixed in 0.27.2-5.el8and 1 other package
geglAlmaLinux:8all versions · fixed in 0.2.0-39.el8
gnome-color-managerAlmaLinux:8all versions · fixed in 3.28.0-3.el8
libgexiv2AlmaLinux:8all versions · fixed in 0.10.8-4.el8and 1 other package

Vendor advisories

CVE-2019-20421 Red Hat Product Security97 products fixed
exiv2: infinite loop and hang in Jp2Image::readMetadata() in jp2image.cpp could lead to DoS
RHSA-2020:1577 Red Hat Product Security97 products fixed
Red Hat Security Advisory: exiv2 security, bug fix, and enhancement update

Full record on NVD

Description

In Jp2Image::readMetadata() in jp2image.cpp in Exiv2 0.27.2, an input file can result in an infinite loop and hang, with high CPU consumption. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted file.

Technical details

Published: 2020-01-27

Frequently asked questions

What is CVE-2019-20421?

Is CVE-2019-20421 actively exploited?

Active exploitation of CVE-2019-20421 has not been confirmed. Its EPSS score was 4.3% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-20421?

CVE-2019-20421 has a CVSS v3 base score of 7.5 (HIGH severity).

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